Frequently Asked Questions

Comparable grades are -

SAE Gear Oil Viscosity Grade ISO Hydraulic Oil Grade
SAE 70 ISO 22
SAE 75 ISO 32
SAE 80 ISO 68
SAE 85 ISO 100
SAE 90 ISO 220

The following chart shows the comparative viscosity grades


HV stands for High viscosity Index. This means a Hydraulic Oil with a HV rating will work more efficiently over a wider temperature range than a standard type hydraulic oil.

HV type have better oxidative stability and their hydrolytic stability extendeds service Life over standard Hydraulic Oils.

Zinc is an effective Anti-Wear agent used in many Hydraulic Oils to prevent wear and friction on moving parts. Although it is an effective Anti-Wear agent, it can also contribute to thermal breakdown of the oil when used in exteme temperatures and load situations. It can also attack some yellow metals used in some machines. Zinc can also have an environmental impact in the event of a leak or breakdown.

mixing different oils that have different Additive packages is never recommended. Hydraulic Oils are no exception.

The different types of Hydraulic Oils have different Additive packages and mixing them creates a concoction with unknown results and could compomise the performance, economy and reliability of the machine.

If oils need to be mixed in an emergency or it is done accidently, we suggest changing the fluid at the nearest opportunity.

Indus Pro Hydraulic Oils are low Zinc professional grade HM and HLP type Hydraulic fluids.

Indus HV (High viscosity Index) Hydraulic Oils are Zinc Free, premium grade HV, HLP & HVLP Hydraulic Oils.

The Indus HV range is designed for use where there are wide temperature variations and more extreme operating conditions.

When choosing the correct Hydrraulic Oil to use, the following can be a guide -

Manufacturers Recommendations - What does the manufacturer of the machine advise to use for the application. Is their a specification they request or a particular product.

viscosity Requirements - What viscosity is required e.g ISO 46 or SAE 75

Compatibility - Are components of the machine susceptible to the choice of fluids. eg - Does the machine require "Zinc Free" Anti Wear fluids.

Climate - Is the machine operating in adverse conditions such as a marine environment, wet, arid or muddy conditions?

Operating Temperature - Does the machine need fluid compatible with wide temperature ranges?

Other - Does the machine need a specialised fluid such as fire resistant, food grade etc?



No - our Indus Pro and HV Hydraulic fluids are not suitable for this application. For wet brake and Transmisison compliance, please use our Tractor Transmission and Hydraulic Fluid (TTH)

The difference is the Viscosity Grade of the Hydraulic Fluid. ISO 68 is heavier than ISO 46 which is heavier than ISO 32.

Finding the correct grade is important as as each viscosity will react differently to the other.


HM type Hydraulic Fluids contain active ingredients to increase the corrosion protection and resistance to aging and to reduce wear due to scoring in the mixed friction area.

HV type are similar with improved high temperature viscosity.

To find out more about Hydraulic Fluids - visit our Knowledge Centre

To find out what oil to use in your vehicle, you will need to know the following
1) Make of Vehicle
2) Year of Manufacture
3) Model Type (2WD or 4WD)
3) Engine Type and Size
4) Transmission Type (you still need to know this whether it is auto or manual as both have differentials, transfer cases etc. Some FWD models will use the ATF fluid as a Differential fluid, others will have a seperate fluid)

Most of these are all available from your owner's handbook.

To ensure you select the correct grade and specification of oil for your vehicle, look up your vehicle on the Penrite Product Selector Click here to look up your vehicle.
1) Select your vehicle type
2) Select your make
3) Select your model
The Penrite Product Selector will not only advise you of the correct oil, but will also recommend all of your lubricant needs for your vehicle based on the vehicle Manufacturer's Specifications.

The Product Selector will also give you the volume of product you need for most vehicles.

We always recommend using our Product Selector either on the web, in store Touchscreen, or by mobile app.

"Preferred" is the product that is the best option based on original OEM or vehicle manufacturer specifications including licensing approvals.

"Alternative" provides another option based on the OEM or manufacturer specifications required and may also take into consideration such paramaters including-

If you have further queries regarding our recommendations, please call Penrite Technical Assistance on 1300 736 748 AET 8.00AM to 6.00PM Mon-Friday

Or email or use our on line CHAT service form our web page.

Yes, in most cases, there is no problem in moving to a higher operating temperature viscosity. At Penrite, we believe that having a higher viscosity at operating temperature (second number in e.g. SAE 10W-40 viscosity) will be of benefit to your engine, particularly in Australian which is considered a HOT climatic environment. Penrite's HPR range of engine oils have the "EXTRA 10" in the engines operating temperature viscosity which provides for a slightly thicker oil film between the engine components when the engine is at operating temperature. This lowers frictional heat which causes wear and hence provides better protection for the engine.

Penrite's motto is "The Right Oil for the Right Application", so always check the Penrite Recommendation guide for the correct product for your vehicle.

Yes, if your Driving Conditions are not within the typical realms as set out by the vehicle manufacturer. Manufacturers may give alternative Viscosities depending on climatic conditions and reduced service period intervals for severe or harsh conditions. Some manufacturers may only give one specification type and viscosity of oil to use under all conditions. We suggest you check these carefully before changing either specification or viscosity. The Penrite Knowledge Centre has further information on Driving Conditions.

Vehicle manufacturers are always looking for ways to improve their vehicles, whether it be economy, emissions, longevity, performance or a combination of all of these. Hence they require a wide and varied range of technologies to achieve these goals. Lubricants are an important part of all these areas and have become more sophisticated to ensure that they meet with the vehicle manufacturers requirements as specified for each vehicle in their range. Items such as DPFs (diesel particulate filters) have become the norm with diesel powered vehicles and require special low ash lubricants to perform at their optimum levels. Using the wrong products in vehicles such as these can cause catastrophic and expensive failures to equipment. At Penrite, we recommend the “Right Oil for the Right Application”, so our range covers many different manufacturers requirements including OEM Approved products where needed.

We highly recommend topping up with the recommended specification of oil. This ensures compatibility with the existing oil and meets the performance criteria required by the vehicle.

Most vehicle manufacturers will give a recommendation for the type of oil and what specification is required by that vehicle to operate at its optimum performance and economy levels. Some will even goes as far as putting an approval process in place to try and ensure that the correct lubricants and coolants are used in the vehicle. Therefore finding the correct lubricant for that particular vehicle is paramount in terms of –

  • Meeting the vehicle manufacturers warranty requirements
  • Ensuring the vehicle performs as expected
  • Ensuring the vehicle meets fuel economy as stated
  • Making the vehicle meet the environmental standards required.
  • Making the vehicle meet safety standard requirements
  • Ensuring the longevity of the vehicles drivetrain components

Yes, using the wrong specification of oil can be a big detriment to the performance and longevity of an engine. Engine tolerances have improved considerably over the past 20 years and most modern engines are designed to run on cleaner, fuel efficient, lower viscosity engine oils whereas older motors require oils with different properties such as higher Viscosities to protect them. Another problem with using lower specification oil in a modern engine is that the older specifications were not designed to cope with the extended service intervals of modern engines. Using the wrong specification of oil can lead to increased wear, poor fuel economy, less power, increased piston deposits, sludge formation and internal failure or blockages of oil galleries leading to engine expiry.

There is nothing stopping anyone from obtaining a bargain, as long as the product on special meets with the requirements specified for that particular vehicle by the manufacturer. So using a Mineral based 20W-50 engine oil in a vehicle that requires a 5W-30 Full Synthetic oil is false economy and detrimental to the engine.

Using a engine flush will help keep the internals of your engine cleaner and free of deposits, contaminants and sludge. Penrite Engine Flush contains advanced cleaning agents that are designed to clean engine internals including the oil galleries that effect lubrication of the engine. These contaminants are broken down by the Engine Flush and drained away with the oil service.

Using an Engine Flush is good practice when servicing a vehicle as they also leave a better environment for your new oil to do its job more effectively. The cleaner the inside of your engine is, the less chance that key lubrication points of the engine will becoame blocked with contaminants or sludge causing an engine failure.

FULL ZINC + is an Anti Wear Additive package for ultimate engine wear protection containing optimum Zinc levels and boron to lift the total level of Anti Wear package Additives to over 1800+ ppm.

Every Multigrade engine oil has two numbers in its SAE viscosity. Examples of this are 5W-30, 10W-40 & 20W-50. The first number in the sequence followed by the “W” is the oils cold starting viscosity eg (5W-?) where the “W” stands for “Winter”.

The second and higher number in the sequence is the oils operating temperature eg (?W-40). The second number in the SAE viscosity sequence is measured at 1000 Centigrade. The higher the second number, the less the oil thins out when the engine gets to operating temperature.

The Penrite “Extra Ten” increases the operating temperature of the oil from the normal SAE ratings to a higher level. Where 5W-30 is normal, Penrite will make a 5W-40, 10W-40 will become 10W-50 on so on. This is the Penrite Extra Ten!

Extra 10 Graph

Why do we do this?

With all engine oils, as the engine warms up, the oil gets thinner as it gets hotter. The thinner it gets, the less film strength there is between moving parts. To protect the engine from wear, the less the oil thins out, the better the film strength and hence less chance of wear on the internal engine parts. This is particularly important if the engine is placed under severe operating conditions such as towing, competition, stop/start conditions, heavy traffic or operates in high ambient temperature conditions such as we experience in Australia and the Asia Pacific region.

Is Extra Ten New?

No, Extra Ten is not new. In fact Penrite developed “Extra Ten” back in the early 1980‟s when developing oils that were suitable to the warmer climatic conditions found in the Asia Pacific region. Oils suitable for the colder European and North American conditions were not suitable for vehicles running in Australia and were the cause of many problems in some engines. HPR 50 developed by Penrite owner John Dymond, was the first product to have the “Extra Ten” to greatly increase the life span of engines during this period.

HPR 50 was followed by HPR 40, the HPR 30, that all featured this extra protection.

Figure 1 below shows how 3 different oils operate. They all start off at the same viscosity but as they heat, they have all thin out at different rates. The less the oil thins out as it heats, the less chance of wear occurring due to low oil pressure and film strength.

Figure 2 shows how the “Extra Ten” in the oils heat range improves the film strength of the oil at operating temperature. As the oil heats up and thins out, the heat build-up can cause a breakdown of the oil. This results in increased friction, increased temperatures and oil breakdown that can that can be the cause of unwanted engine damage. Penrite products with the “Extra Ten” and superior heat range are not as likely to break down and cause friction due to heat build-up as do lower rated oils.

A video on this can be seen on the Penrite Web site

What Penrite products feature the “Extra Ten”?

The HPR Engine range features Extra Ten Technology. This is exclusive to this range of products

Extra 10

As engine oils are compressed and pulverised by the workings of an engine, the VI Improvers in the oil are cut or sheared, losing their ability to expand when heated which affects the oil’s Multigrade viscosity that inhibits the oils ability to protect against metal to metal contact with resultant wear, loss of oil pressure and engine power. Penrite 10 Tenths Racing Oils feature SHEAR FREE technology that offers start up protection, maintains oil pressure and eliminates viscosity loss for ultimate engine performance and protection

The Penrite DOUBLE LAYER of PROTECTION is standard on all HPR engine oils. It combines FULL ZINC with Penrite's EXTRA TEN technology to provide an increased level of protection compared with standard grade engine oils.

Penrite has been manufacturing lubricants here in Australia for over 90 years. Apart from the experience, Penrite only use the very best products to blend our lubricants. Using the best ingredients provides our customers with products that are unsurpassed in quality and 100% guaranteed to perform their intended function.

We use the very latest technology to ensure our products meet and exceed the stringent requirements of both international governance bodies such as API (American Petroleum Institute) and ACEA (Association des Constructeurs Europeens d'Automobiles) as well as the OEM vehicle manufacturers themselves. Penrite is one of the only lubricant companies that provides OEM APPROVALS with their products. These approvals come from the manufacturers and are a quality assurance that our products have been tested and approved by the manufacturers and are made to perform correctly in their intended applications.

Penrite is an Australian family owned business and we blend our oils right here in Australia for Australian conditions. Penrite oils are designed to cope with Australia' harsh climatic conditions and provide the ultimate in protection for your vehicle.

Many Penrite oils feature increased levels of engine wear protection such as our HPR range which have FULL ZINC Additive packages and our EXTRA TEN in the oils viscosity range that provide extra layers of protection over standard SAE grade rated oils.

At Penrite our motto is " Right Oil for the Right Application", hence we manufacture one of the industries largest lubricant ranges so our customers get the right oil for their application. This is just another way Penrite look after our customers and hence why we have been around for over 90 years.

Penrite Oil Company is the oldest Australian family owned independent oil company in Australia. We boast three blending facilities in Australia. Our first blending facility, along with our Head Office is located in Dandenong South and another in Wantirna in Victoria. We also have a blending facility located in Crestmead, Queensland. These three state of the art modern production facilities blend the majority of our product range.

Penrite' ongoing philosophy of producing the highest quality product for every application, since 1926, remains a core value of the company to this day.

Most Penrite oils contain Additives that improve the performance of the engine oil. These Additives, amongst other important ingredients, contain Detergents and Dispersants. Detergents are an extremely important part of the engine oil and are incorporated into the oil blend to keep the internals of your engine clean, whilst Dispersants are added to suspend the contaminants that are too fine for the filter to capture and these are then flushed away during an oil change.

Modern day engine oils require carefully selected Additives to perform these tasks and not become saturated during the extended oil drain interval. Late specifications such as API SN and ACEA A3/B4 grade oils provide the highest levels of detergency to keep engines cleaner for longer. This stops the build up of sludge, piston deposits and reduces wear significantly over their previous grades. Penrite oils are specifically developed to keep cleaning and looking after your engine for the entire service period. To keep your engine clean, you should change your oil and oil filter regularly.

Penrite oils are blended here in Australia with premium base oils and Additives supplied from the world’s leading oil and Additive suppliers. We only use the highest quality ingredients that will meet and exceed manufacturers requirements which is why selected Penrite oils carry OEM APPROVALS from the worlds premium vehicle manufacturers such as Mercedes Benz, BMW, VW, General Motors, Porsche, Cummins, Mack, Renault, MAN, Volvo, Detroit Diesel and the NMMA. Cheaper oils do not carry these OEM APPROVALS. Penrite also provide 7 day a week technical assistance for our customers, lube stickers on the bottles, a comprehensive web page with product information, company information, MSDS availability, product recommendation guides, touch screens, mobile apps. technical training and personalised instore service as part of their package. This makes Penrite even better value than most other brands.

Penrite is available from all major Automotive stockists and retailers.

Penrite is also available from selected service centres and mechanical workshops.

To locate your closest stockist, use the Penrite Stockist Locator from our web page -

To locate your nearest Service Centre or Mechanical Workshop -


In most circumstnaces, yes, they are backward compatible but this should be treated on a case by case basis. Penrite manufacture lubricants for modern, Classic, veteran and vintage vehicles.

In some applications, the original type specification will provide the best results. An example of this would be putting a low viscosity engine oil such as a API SN 5W-30 into a 1970's engine. The older engine is likely to burn or leak the lower viscosity oil and it won't have the viscosity at high temperature to provide adequate protection.

HPR is a range of premium, Full Synthetic, Semi Synthetic & Premium Mineral based engine oils. They feature the latest API & ACEA specifications as well as a DOUBLE LAYER of engine wear protection with FULL ZINC & Penrite's famous EXTRA TEN technology.

10 Tenths  Racing and Premium are high performance, Full Synthetic 100% PAO (Group IV) & Ester (Group V) oils.

RACING oils have SHEAR FREE formulations that maintain oil pressure and eliminate viscosity loss.

PREMIUM oils also feature Penrite' FULL ZINC+ Anti Wear Additive packages as well as wider viscosity bands than the SAE standard providing increased levels of protection over standard SAE grade oils. They both feature a FULL ZINC+ Anti Wear Additive pack that contains Zinc and Boron to provide the ultimate in protection for either competition or on road use.  Both RACING and PREMIUM ranges are competition proven and trusted protection for performance engines. They feature the latest engine oil technology and are available to suit most types of engines.

Enviro+ oils are Full Synthetic low and Mid SAPS engine oils that are application specific for the latest Low Emission, fuel efficient engines. They feature the latest API & ACEA specifications for better wear protection, less sludge and lower piston deposits. Penrite Enviro+ engine ols are designed for the latest petrol and diesel engines vehicles fitted with diesel catalysts and DPF (Diesel Particulate Filters). They feature OEM APPROVALS where necessary to maintain new vehicle warranty.

Everyday is a range of Full Synthetic, Semi Synthetic & Premium Mineral engine oils designed for normal Everyday motoring. They feature the latest API & ACEA specifications and provide complete engine protection. They are available in a viscosity to suit most popular vehicles.

VANTAGE is a range are Full Synthetic, Semi Synthetic & Premium Mineral engine oils designed for normal Everyday motoring. They feature the latest API & ACEA specifications and and provide advanced engine protection. They are available in a viscosity to suit most popular vehicles. Vantage is exclusive to Repco outlets.

Classic are premium oils specifically designed for Classic, Veteran & Vintage vehicles made prior to 1989. They are designed to meet and exceed the original technical specifications and requirements of these vehicles using the latest oil technology to preserve these historic machines.

E85 Compatible Engine Oils


E85 fuel is a mixture consisting of 85% ethanol and 15% unleaded petrol. It has been introduced as a fuel as it is a form of renewable energy and, as such, can potentially renew hydrocarbon reserves.

Vehicles able to use E85 can be also known as Flex Fuel vehicles. Some examples of these are VE2 Holden Commodore V6, VF Commodore V6, Chrysler Sebring V6, Dodge Journey & Avenger, SAAB 9-3 & 9-5 Bio Power Models. In Motorsport, all the V8 Supercars now run on E85 fuel.

It is important to use engine oils that are compatible with E85 fuel. Oils meeting API SN Resource Conserving and ILSAC GF-5 are best able to handle E85 fuel as a specific test was introduced for oils meeting this specification for corrosion protection when used with E85 as the fuel. The reason for this is oil that mixes readily with ethanol fuel blends can appear to go milky and may appear to be contaminated with water where fuel dilution occurs. 

E85, in general, poses issues with corrosion protection as water is soluble in ethanol and even trace amounts can increase the likelihood of rust occurring inside the engine and fuel delivery system.

Penrite recommends the following oils for use with E85 Fuel.

Everyday Use

Enviro+ 0W-20  Enviro + GF-5 5W-30  Premium Mineral 10W-30
Enviro+ 5W-20 Vantage Semi Syn. 5W-30 Vantage Semi Syn 10W-30
  Premium Mineral 5W-30 Pro 10 10W-30 (Trade)

For Competition Use Only

Premium FS 0 0W-40  Racing 0 0W-20 HPR 5 5W-40
Premium FS 5 5W-50 Racing 5 5W-30  HPR 10 10W-50
Premium FS 10 10W-60 Racing 10 10W-40 HPR 15 15W-60
  Racing 15 15W-50 HPR 30 20W-60
Racing 20 20W-60 HPR 40 25W-70
  HPR 50 40-70

Competition Motorcycles

MC4ST 5W-40       MC4ST 10W-40  MC4ST 15W-50

For 2-stroke competition applications, use Penrite Race Castor Synthetic, which tests so far, have shown that it is miscible with E85.

NOTE: If using products other than E85 approved oils, Penrite suggest more frequent oil change periods that will lessen the chance of corrosion of engine internals and / or dilution of the engine oil. 


Penrite recommend “The Right Oil for the Right Application”

Click Here to visit the Penrite Product Selector, which will ensure you receive the correct oil for your vehicle

Yes, Penrite Oils can be used for most types of Log Book servicing both during and after the vehicles warranty period. The Penrite Product Selector will advise if an OEM Approved product is required during a warranty period and which product has that approval. 

NO - Penrite suggest that you contact the OEM manufacturer for correct oil for that particular supercharger.

Penrite does produce oils suitable for vehicles fitted with a DPF (Diesel Particulate Filter).

Modern turbo diesel vehicles are increasingly being fitted with DPFs to assist in reducing engine emissions and they require specific oil compatible with these units. The Penrite Enviro+ range of engine oils cover the majority of diesel passenger cars available in the market today that are fitted with a DPF.

The Penrite Enviro+ range of engine oils also hold OEM (Original Equipment Manufacturers) approvals so these oils can be used in your new vehicles without effecting your manufacturer' warranty.

Most modern diesel fuelled vehicles are now fitted with a DPF (Diesel Particulate Filter) but there are still some vehicles that are not.

If you have a new vehicle and you are not sure, then we suggest ringing the manufacturer or dealer of the vehicle with the model type, engine type and even the VIN number.

Another way to find out is by looking in the vehicle owners manual.

The difference is in the cost of the base oil and the Additives packs used in each product. Modern late specification engine oils complying with the latest API (American Petroleum Institute), ACEA (Association des Constructuers Europeans de l’Automobile), JASO (Japanese Automotive Standards Organisation) and ILSAC (International Lubricants Standardisation & Approval Committee) are more expensive to manufacture than earlier specification engine oils.

base oils for newer modern engine oils tend to be either Synthetic based or Semi Synthetic which costs more to produce than Mineral based products. The Additive packs and VI improvers used in modern oils are also more expensive to manufacture. They use the latest technologies that provide increased levels of performance over older type Additive packs.

Synthetic oils are more expensive than Mineral oils because the base oil cost is higher. Synthetic base oils are generally more refined than Mineral oils which adds to the cost of manufacturing.

All Penrite oils are manufactured as a balanced blend of base oils and Additives designed to fit particular applications.
If one of our oils needs a specific Additive for a particular application, it will already be added in to that particular oils Additive pack in the correct dosage.

This is a common practice to slow oil burning / consumption. Manufacturers generally supply a working viscosity range based upon Climate of a particular region. In many vehicles this practice is still used to extend the Life of the engine. In some vehicles though, this is not an option as the vehicle has particular specification requirements that may only be available in one viscosity. In these cases, we would recommend filling with the specified fluid even if it is burning a little oil. This is particularly important for vehicles fitted with diesel particulate filters or those that require a lower viscosity oil to operate fuel pumps or cylinder de-activation. Again, it is worth checking the Penrite lubrication guide as we will give options where this is possible.

This type of statement breaches Australian Consumer Law and dealers can be reported to the ACCC for suggesting that their oil is the only option for your vehicle. As long as the oil used meets with the OEM specification required by the manufacturer, is fit for service and work on the vehicle is carried out by a professional automotive repairer, then all warranties in relation to the vehicle manufacturers warranty must be met. If owners need further information, this can be found at -

These vehicles use a variable flow oil pump that uses vane elements to increase and decrease the flow rate at varied engine speeds. When the vehicles engine oil is drained for an extended amount of time, the oil drains not only from the sump, but internally from the pump assembly. If left longer than 10 minutes, the oil pump may drain of oil and could fail to re-prime when started. In this instance, the engine will have a lack of lubrication which could lead to an engine failure. The pump cannot be primed by increasing the RPM of the motor, this will just lead to engine damage from a lack of lubrication.

To avoid this from happening we recommend having all necessary parts on hand and complete the service within the recommended time frame.

  1. Remove and replace the oil filter
  2. Remove the sump plug and drain the engine oil. (We recommend you do not leave it longer than 5 minutes.)
  3. Replace the sump plug with a new washer
  4. Add the new Penrite engine oil such as Enviro+ C2 0W-30 or Full Synthetic 5W-30 to the engine. Approx. 9.8 Litres is needed. Please check the Penrite Lube Guide for the correct product and volume required.
  5. Re-start engine - The oil light should go off after about 5 seconds. (If not stop the engine. Wait a couple of minutes and try again).
  6. If the oil light goes off, re-check oil level, top up if required.
  7. If the oil light still remains on, then the pump may have emptied and no lubrication is being circulated around the engine. In this scenario, we recommend getting professional assistance to re-prime the oil pump.

Most modern engine oils will be multigrade oils, meaning they will have both a high and low temperature viscosity. They will have two numbers separated by a "W".  The "W" stands for Winter which is next to the first number of a Multigrade - 5W-30

The Society of Automotive Engineers (SAE) tests oils and assigns an arbitrary weight or grade (viscosity) number to the oil depending on its flow rate at different temperatures. The SAE numbering systems goes: 0, 5, 10, 20, 30, 40, 50, 60. The grade refers to the oils ability to flow or lubricate at a pre-determined temperature.

The lower the first number, the thinner and more suitable the oil is for lower temperatures generally found in winter. Oils with a cold starting weight need to be able to flow at the following temperatures -


  • 0W oil will flow @ -35°C
  • 5W oil will flow @ -30°C
  • 10W oil will flow @ -25°C
  • 15W oil will flow @ -20°C
  • 20W oil will flow @ -15°C

The flow rate of oils are also tested at a ‘hot’ temperature of 100 degrees C to simulate a running engine.

The 2nd number in a Multi-grade oil refers to the hot or operating temperature viscosity of the oil. So a 5W-30 grade oil at 100°C will only thin as much as its higher rating.

To get this into perspective - a 5W-30 grade oil is a 5-weight oil that will not thin more than a 30-weight oil when it gets hot.

Multi-grade oil ratings look like this: SAE 5W-30 This is based on a 5W oil, tested at -30 degrees C, but at high temperature it will not thin out more than a mono grade SAE 30 weight oil would at 100°C.


The performance properties of lubricants will remain intact for many years provided they are in protected storage and not exposed to severe high/low temperature cycles and outside contamination. Generally, the simpler the oil formulation, the longer the oil will remain satisfactory. As a rule, shelf Life of lubricants is around 5 years, if stored correctly.

Light Duty vehicles are those that are typically less than 3.5 gvw (Gross Vehicle Weight), whilst vehicles above 3.5gvw are considered Heavy Duty vehicles.

Modern engine oils tend to be low viscosity, higher detergency oils designed for modern fuel efficient, Low Emission engines. Older engines tend to use higher viscosity, lower detergency engine oils. Modern engines usually have much tighter tolerances than older engines which require heavier oils to fill in the tolerances.

Penrite's range of Classic, Shelsley and Heritage offer much better protection than original oils utilising modern Additive technology with improved quality base oils. They also contain added anti oxidant and rust inhibitor as well as a tcky Additive to act as a storage agent for vehicle not driven regularly.

Based on market feedback we have updated our packaging with new coloured bottle caps to -

  • Make it easier to identify and differentiate between products
  • Eliminate confusion towards our engine oils, and
  • Create a family of products within our sub-brands.


Used oil, or 'sump oil' can be cleaned and re-used again and again. It can come back to Life as industrial burner fuel or Hydraulic oil or it can be re-refined back into new lubricating oil.

These days most councils and shires have a local used oil collection facility where you can take smaller quantities of used oil for recycling. Some may also accept oily rags, oil filters and oil containers.

If you run a small company, like a workshop or service station, then you may need to contact a used oil collector to come and remove your used oil. Many collectors will do this free of charge.

For more information on recycling your used Motor Oil safely and responsibly, contact your local council or visit their website.

The Australian Government website also has useful information about recycling used oil:

Please contact the Penrite Technical Team on 1300 PENRITE (736 748). If you prefer to "LIVE CHAT" with us, our Live Technical Chat Line is open weekdays between 8.00AM and 6.00PM. This can be accessed from our web home page.

More product and technical information can be found on our website at


NLGI stands for National Lubricating Grease Institute

It is a measure of the thickness of the grease. There are 9 measured thicknesses from 000 which is fluid throught to 6 which is solid.

This is measured by dropping a cone shaped solid into a cup of grease at 25 Deg C. The depth of the displaced grease is then measured and is corresponded with an NLGI thickness.


Grease is a mixture of base oil, thickener and Additive. Like all lubricants such as engine oil, different greases are blended for different applications.

These are taylored towards 4 main principles -

  • Load
  • Environment
  • Temperature
  • Speed

Some greases are required to carry heavy loads, others to resist high temperature and others to wortk in extreme Environments.

Like most lubricants, some greases can work across several areas and some made for specific purposes which is why there are many types available.

mixing greases is not recommended. Different types of grease use different soap (solids) bases and some are not compatible with others. It is always safer to remove and re-pack areas where it is uncertain what type of grease has been previously used.

This tribometer is tool for lube testing. It was originally developed by Timken and was used to determine the load carrying capacity of lubricants. It uses a bearing race pressed against a steel block creating a line contact.

The Timken “OK” Load test requires the test load to be increased until the lubricating film between the ring and the block is broken. Scoring is observed as a result of this broken lubricant film and this load value is then reported as the Timken OK Load.



There is no such thing as a totally waterproof grease but there are some greases that are more water resistant than others and are designed to operate in wet Environments.

Penrite products that are the most water resistant are -

  • Marine Grease
  • Power Sports Grease
  • High Temperature Bearing Grease
  • Heavy Duy Bearing Grease
  • ACT Grease EXP2
  • Indgrease 100LX EP2
  • Indgrease Moly HT
  • CV Joint Grease
  • Indgrease 1615 WR
  • Indgrease CX 152WR
  • QCA MX 9 Gresae
  • Indgrease BM3


Stop leaks are designed to create a temporary repair and should not be treated as a permanent repair. In some cases the use of a stop leak will extend the Life of a component indefinitely but this does not replace a mechanical repair.

No - Transmision Stop Leak is not deigned to be used with DCT (VW DSG Gearbox) or CVT gearboxes.

To find out what ATF to use in your vehicle, you will need to know the following
1) Make of Vehicle
2) Year of Manufacture
3) Model Type
3) Engine Type and Size
4) Transmission Type (this is important as the same type of vehicle may have a different traansmission to another e.g Ford Falcon 4 Speed and 6 Speed autos)

Most of these are all available from your owner's handbook.

  1. To ensure you select the correct grade and specification of ATF for your vehicle, look up your vehicle on the Penrite Product Selector Click here to look up your vehicle.
    Select your vehicle type
  2. Select your make
  3. Select your model
  4. Select your transmission type

The Penrite Product Selector will not only advise you of the correct fluid, but will also recommend all of your lubricant needs for your vehicle based on the vehicle Manufacturer's Specifications.

The Product Selector will also give you the volume of product you need for most vehicles.

We always recommend using our Product Selector either on the web, in store Touchscreen, or by mobile app.


Car manufacturers supply fill capacities for transmisisons based upon a dry fill. When draining an automatic transmission, there will always be residual fluid in the torque converter, transmission itself, hoses and transmission cooler. The amount left in the transmission after draining will vary by vehicle and there is no specific percentage common to all vehicles.

When draining a transmission and refilling, the amount taken out should be replaced and careful attention paid to getting the fill to the correct level as per the manufacturers instructions or requirements.

ATF FS,  ATF MHP and ATF DX-III are suitable for use where DEXRON®-III is specified.

It allows our customers a choice on whether they use Full Synthetic (ATF FS), Semi Synthetic (ATF MHP) or Premium Mineral (ATF DX-III) based products.

ATF FS will provide 5 x times the Smooth Shift durability over the Life of the fluid based upon the JASO M349 industry anti shudder test.

ATF MHP will provide 2.5 times the Smooth Shift durability over the Life of the fluid based upon the JASO M349 industry anti shudder test.


ZF stands for ZF Friedrichshafen AG, the manufacturers of these gearboxes, although they are made under license my some OEM manufacturers.

Penrite, the innovators in the lubricants market in Australia, have a product that can be used for ZF 6, 8 & 9 Speed Automatic Transmissions - ATF BMV

ATF BMV is a Full Synthetic Automatic Transmisison Fluid designed for transmisisons such as ZF 6, 8 & 9 speed units.

Type F fluid is a non friction modified automatic transmission fluid as used by Ford and other manufacturers that did not use dexron type automatic fluid. The "F" in Type F comes from the Ford specification M2C33-F.  

CVTs have become more popular with OEM manufacturers as an economical alternative to a conventional step type Automatic Transmissions. They offer excellent power delivery and economy especially in small to medium vehicles.

Penrite CVT Fluid V was introduced for 1st and 2nd Generation CVTs that use a Van Doorne belt type system and is suitable for many Mitsubishi, Nissan, Hyundai, Proton, Mini and other vehicles.

Penrite CVT Low viscosity has been launched to cater for 2nd and 3rd generation CVTs that use a lower viscosity fluid for improved fuel economy and performance. It is suitable where Mitsubishi DiaQueen CVTF-J4 and Nissan NS-3 is needed in current model vehicles

Penrite CVT Chain has been introduced to cater for CVTs that use a LuK chain system and for Audi Multitronic systems.


TYPE A and TYPE A Suffix A were the original ATFs used prior to Dexron® fluids being launched. They are generally required in vehicles made prior to 1967.

Penrite Classic ATF can be used where these fluids are required.

ATF DX-III and ATF MHP both cover all applications where Castrol TQ95 is specified. For any additional competitor product equivalents please contact the Penrite Technical Team on 1300 PENRITE (736 748).

Yes, this is quite normal for manufacturers to use Automatic Transmission Fluid (ATF) in Manual Transmissions. Depending on the transmission type, Penrite have products that may be able to replace the ATF fluid such as Pro Gear 70W-75, whilst providing better shift quality and longer fluid Life.

When servicng an automatic transmisison, draining will not remove all of the fluid, therefore the new fluid need to be the same specification as the fluid it replaces. The same if topping up a transmission. It is important that when servicing a transmission that the correct specification is used as requested by the manufacturer to ensure the transmission performs as it is intended.

Both of these oils use the same base oil (Full Synthetic) and the same viscosity but they have different specifications.

Penrite Pro Gear GL-5 75W-85 is an API GL-5 designed for differentials and Extreme Pressure applications.

Penrite Pro Gear 75W-85 is an API GL-4 and is designed for Manual Transmissions and Transaxles.

To find out what oil to use in your vehicle, you will need to know the following
1) Make of Vehicle
2) Year of Manufacture
3) Model Type
3) Engine Type and Size


4) Transmission Type (this is needed for some vehicles)

Most of these are all available from your owner's handbook.

To ensure you select the correct grade and specification of oil for your vehicle, look up your vehicle on the Penrite Product Selector Click here to look up your vehicle.
1) Select your vehicle type
2) Select your make
3) Select your model
The Penrite Product Selector will not only advise you of the correct oil, but will also recommend all of your lubricant needs for your vehicle based on the vehicle Manufacturer's Specifications.

The Product Selector will also give you the volume of product you need for most vehicles.

We always recommend using our Product Selector either on the web, in store Touchscreen, or by mobile app.

Penrite has a simplified range of gear lubricants eliminating unnecessary duplication of Hypoid and Limited Slip grades. 

PENRITE GEAR OIL is a range of Premium Mineral based gear oils with Limited Slip Differentail Additive which eliminatates the unnecessary duplication of Hypoid and Limited Slip grades.  

PENRITE TRANS GEAR are a premium performance, SEMI Synthetic gear oils. They use the latest technology, purpose designed Additives for long service Life and contain unique viscosity modifiers for enhanced performance.

PENRITE PRO GEAR are made from Premium FULL Synthetic and mineral base oils, with an advanced Additive system to provide performance and protection under the most severe service. FACTORY RACING – The PRO GEAR range is used by Factory and Independent Race teams reliant upon the performance and protection it provides. As used in the 2017 Bathurst 1000 Winning Erebus V8 Supercar.


GL-5 gear oils have a higher ratio of Extreme Pressure Additives than GL-4 gear oils.

GL-5 products can be used where GL-4 products are recommended but GL-4 products can not be used where GL-5 is specified.

GL-5 rated oil is required for most differentials due to the Extreme Pressure generated by the crown and pinion drive system, whereas most Manual Transmissions only require a GL-4 rated product.

Limited Slip Differentials (LSD) need a Friction Modifier Additive in the gear oil to prevent the clutch packs from chattering. Penrite Gear Oils and selected Pro Gear products already have the correct dosage of LSD Additive in the oil.

There are several ways this information can be found -

  1. Ring the manufacturer or vehicle dealer with the VIN number for the vehicle.They will be able to tell you if that particular vehicle is fitted with an LSD or not.
  2. Contact a workshop/service centre and have them check the vehicle for you.
  3. Check the compliance codes for the vehicle on the ID stamped plate. Sometimes these will have the manufacturer codes for Differential type. This will also require some background work in identifying vehicle manufacturer codes.

Yes, Penrite oils use a non-aggressive type of Extreme Pressure Additive system that is safe for white and yellow metals.

EP (Extreme Pressure Additives) act as a barrier between moving surfaces when the lubricant film between the surfaces has decreased to a point where friction can cause wear and damage. This is generally caused by heat generated by the movement and high pressure produced from heaving loading.

A radiator flush should be used to neutralise any left over Coolant in the system prior to refilling the system with new Coolant. This reduces the risk of the new Coolant reacting with the old Coolant and generally gives the system a good clean out at the same time improving performance of the cooling system

Refer to the Penrite Product Selector , the owner's handbook or factory service manual.

Concentrated coolants are packaged to be diluted to a specific Coolant concentration ratio i.e 50% by mixing with water.

Pre-mix coolants are already diluted with water at a preset ratio normally between 33% to 50%.

Penrite Pre-mix coolants are diluted with De-mineralised water to ensure no contamination enters the cooling system.


De-Mineralised water has had all impurities removed from it. Mineral, chemicals and impurities in tap, tank or rain water could react with parts of the cooling system and effect performance and longevity of the Coolant.

Different types of coolants have different types of Additive packs in them to stop corrosion, rust, scaling etc. Some of these Additive technologies aren't compatible with others and can cause a chemical reaction that may cause major damage to the cooling system and ancillary parts. Penrite have a Universal Top Up Coolant that has unique chemistry and can be mixed with all types of Anti Freeze Anti Boil Coolants. If you are not sure about what Coolant is in your vehicle - When in doubt - Flush it out!

Penrite Universal Coolant Top Up is a special blend product designed to mix with all Coolant types that -

1. Does not degrade the original Coolant

2. Will not discolour the original Coolant if used at under 10% volume

It is ideal as an emergency top up for someone who does not know what type of Coolant is in their vehicle.

Yes - Penrite have 7 Year 450,000km Blue Coolant in Concentrate and premix. It is OEM Approved and is suitable for use with Australian, European, Asian & US vehicles. It is Silicate, Borate and Phosphate Free making it particularly suitable for both European & Japanese vehicles that use blue coloured Coolant such as Nissan, Subaru & Suzuki.

No, Penrite does not make or market a Waterless Coolant.

At present, NO OEM uses waterless Coolant as the factory fill, so therefore it is not recommended by any manufacturer for use in their vehicles.

Our coolants are either OEM Approved, Type A or Type B and require dilution with water, unless a premix version is used, in which case, no further dilution is necessary.

Our OEM Approved coolants use the very latest specification, long Life Additive packs as used by OEMs in initial factory fills. They are the latest technology and offer the longest Life spans. The OEM coolants are also mixed at ratio of 50% which allows for a higher concentration of inhibitor in the cooling system.

The 350,000KM Coolant although using similar technology to the OEM coolants, is generally mixed at a ratio of 33% - 50% which means the inhibitor pack is not as concentrated, therefore the kilometres are adjusted for this anticipated ratio.

The Type B products such as RCI100, Racing Coolant and Classic Car Coolant use Hybrid Inhibitor Packs similar to what you would find in an AF/AB (Anti-Freeze Anti-Boil) Coolant, but at a lower concentration level.

There is basically no difference except in the way this type of product is referenced and who uses what terminology.

Both in industry terms would be classified as Type B Coolants which implies they would provide rust and corrosion resistence but NO Anti Freeze Anti Boil protection (Type A).

Although some are referred to as Coolants, the are basically just an inhibitor to protect against rust and corrosion.

Choosing The Right Brake Fluid

What do you think is most important when choosing a Brake Fluid?

Most drivers today probably don’t have much of an idea of what Brake Fluid or type of Brake Fluid they have in the vehicle. Some may be concerned with the boiling temperature of their Brake Fluid (such as race drivers who only use their cars at the race circuit) and others if it meets the DOT specification as per their owners or service manualEveryday drivers and riders who frequently drive their vehicles on ordinary streets may need to be more concerned if their fluid meets current DOT specification. Brake fluids that do not meet current DOT specifications can speed up the deterioration of brake components and can also lead to the malfunctioning of ABS during cold weather.  Most people do not know much about Brake Fluid, and it can be difficult to find relevant information to learn more about it.

Following is a guide to better understanding Brake Fluid.

What is DOT specification?

Specification Type Dry Boiling Temp Wet Boiling Temp viscosity (100°) viscosity (-40°) Ph Value
DOT 3 Synthetic over 205° over 140° over 1.5cst under 1500cst 7.0-11.5
DOT 4 Synthetic over 230° over 155° over 1.5cst under 1800cst 7.0-11.5
DOT 5.1 Synthetic over 260° over 180° over 1.5cst under 900cst 7.0-11.5
DOT 5 Silicone over 260° over 180° over 1.5cst under 900cst 7.0-11.5

is the abbreviation for the 'Department of Transportation', which is an American government transportation department. The DOT set standards such as FMVSS (Federal Motor Vehicle Safety Standard) very similar to the JIS in Japan or DIN in Germany. The following table shows the DOT Brake Fluid Specifications:

Dry Boiling Temp: boiling point when the fluid is brand new, no moisture absorption.

Wet Boiling Temp: boiling point with fluid that has 3.7% water by volume. After 1-2 years of fluid use.

viscosity: a measure to represent the Brake Fluid flow property. Higher the value, the more difficult for the fluid to flow. If the value is high when the air temperature is low, the fluid can have a negative effect on ABS performance.

pH Value: value to show acidity / basicity of a solution. If the pH value is lower than 7.0 (strong acidity), the fluid can accelerate corrosion of other brake components

What is boiling point temperature?

The temperature at which the fluid boils. Water boils at 100° whereas Brake Fluid with high boiling point will boil at over 300°C, and Low boiling point Brake Fluid will boil around 140°C depending on condition of fluid.

Why is a low boiling point temperature not acceptable?

When driving a vehicle, brake pad temperature can reach extremely high temperatures (up to 300 °C). This heat gets passed onto the Brake Fluid through the brake callipers, which can raise the fluid temperature over 200°C. If the Brake Fluid is repeatedly heated past its boiling point, some of the fluid vaporizes and creates air bubbles within the brake lines. This can lead to a very dangerous situation where the brake lines are carrying air instead of Brake Fluid.  Air can be compressed which is why it is bled out of brake systems so that the fluid can compress the pistons inside the brake calliper, applying the brakes.

What is Percent Water By Volume?

The most common ingredient of Brake Fluid is glycol-ether. This fluid is Hygroscopic which mean it absorbs moisture from the atmosphere. The 'percent by volume' is a measure of the water content in the Brake Fluid.

The higher the DOT number, the higher the Brake Fluid performance?

This is not exactly correct. The DOT numbers categorizes the fluids by various uses.

Specification       Application use

DOT 3                    Cars with small to medium sized engines

DOT 4                    Cars with larger sized engine and/or for use in competition

DOT 5.1                 Cars with larger sized engine and/or for use in competition and or in Cold Climate regions

DOT 5                    Silicone, Special application cars and motorcycles (Hummer, Harley-Davidson)

What are the major differences between types of brake fluids?

DOT 3 versus DOT 4          boiling point temperature

DOT 4 versus DOT 5.1       boiling point temperature & viscosity at low temperature

DOT 5.1 has strict viscosity standards at lower temperature in addition to having a high boiling point temperature. Therefore, in cold Climate areas, the DOT 5.1 Brake Fluid is very commonly used on most cars. The most widely distributed Brake Fluid is the DOT 4, which has a Dry Boiling Point temperature around 270° and a wet boiling point temperature around 170°.The boiling point temperatures of DOT 4 is very similar to those of DOT 5.1. The major difference is the viscosity at low temperatures. Today, cars are commonly equipped with ABS, and DOT 5.1 fluid is used since the viscosity of it helps the ABS work consistently even in cold climates.

Which DOT specification is best for race circuit use?

Racing brake fluids are developed to cope with excessive heat from the brake callipers and brake pads. Hence they are designed to have a higher boiling point than standard fluids.. The boiling point temperatures easily exceeds DOT 5.1 specification but the viscosity and pH levels do not pass DOT 5.1 specification. This is why racing brake fluids do not pass DOT 5.1 specification.

Is it safe to use racing Brake Fluid for street-use?

The use of racing Brake Fluid that exceeds DOT specification is safe for street-use. The use of racing Brake Fluid that do not meet DOT specification can speed up the deterioration of brake components over a extended period time. It can also lead to the malfunctioning of ABS during cold weather.

How frequently should Brake Fluid be replaced?

For Everyday drivers, who use Brake Fluid that exceed DOT 4 specification, fluid replacement once every 2 years is acceptable. For people who use DOT 3 fluid, fluid replacement every year is recommended. For people who drive aggressively on winding roads, fluid replacement every six month to a year is recommended. For people who drive their cars on the race circuit, replacement before each event is recommended.

What is Super DOT 4?

Super DOT 4’s, meet the DOT 5.1 boiling temperature specification but, their low temperature viscosity characteristics is DOT 4.

Do brake fluids contribute to pedal feel?

There is no major interrelationship between a fluid's adhesive (viscosity) and pedal touch. The pedal touch depend on the moisture absorbed and lower the moisture volume more solid touch and higher the moisture volume softer (sponge like) touch.

Is it safe to mix old and new fluid? Or, mix different grades of fluid?

This is not recommended. By adding new Brake Fluid to old Brake Fluid, you are mixing water absorbed Brake Fluid with new product lessening the effect and lowering the lifespan of the newer fluid. If both products are glycol based DOT approved fluids, the mixing is possible with no major functional problems. Complete replacement of the fluid at the correct Life span is the safest option.

What is Mineral Brake Fluid?

Mineral Brake Fluid are products not made from Glycol-Ether. DOT fluids are nearly all Synthetic products. Mineral based brake fluids as used by Rolls Royce in a few of its models during the 1980’s are suspension and brake fluids that have different properties to DOT fluids.

Can I put Silicone Brake Fluid in my vehicle?

This is not recommended especially when the vehicle has been set up the run with normal DOT type Brake Fluid. Silicone fluids need different valving sizes to DOT fluid and can cause brake failure in a system designed to run on DOT fluid. Alternatively, systems designed to be used with Silicone Brake Fluid, should not have DOT fluid placed into them.              

Penrite Brake Fluids


Penrite recommend “The Right Oil for the Right Application”

Click Here to visit the Penrite Recommendation Guide, which will ensure you receive the correct oil for your application

Super DOT 4, DOT 4 and DOT 3 are non petroleum, Synthetic brake fluids designed for use in a wide range of brake and clutch applications.

DOT 4 fluids have a higher dry and wet boiling point than DOT 3 fluids

DOT 5.1 is a low viscosity fluid designed to work with Micro Valved ABS systems and also to circulate at extremely cold temperatures.

DOT 4 ESP is optimised for faster reaction times than other fluids. This is essential for on board electronic systems such as ESP (Electronic Stability Programs), ABS (Anti-Skid Braking) and Vehicle Collision avoidance systems to work at peak performance. It can replace DOT 4 / Super DOT 4 and DOT 3 Fluids.


DOT 4 and DOT 3 fluids are compatible with each other as well as DOT 4 ESP, and DOT 5.1

RACING Brake Fluid is compatible with Super DOT 4, DOT 4, DOT 4 ESP and DOT 5.1. It is NOT compatible with DOT 3 fluids

DOT 5 SILICONE FLUID is NOT compatible with any other Brake Fluid

NO! A DOT 5 Brake Fluid is silicone based whereas a DOT 5.1 Brake Fluid is glycol ether based fluid. They are not compatible and will not mix.

There is no reason why this cannot be done in most vehicles but before using Silicone Brake Fluid - The old fluid needs to flushed completely out of the system, including calipers, lines, master cylinders, ABS modules and all parts of the system before the new fluid can be used. This is essential as DOT 5 Silicone Brake Fluid is not compatible with any other type of Brake Fluid.

NO - definitely not. DOT 5 Silicone Brake Fluid incompatible with other brake fluids and mixing could cause a serious brake failure.

Yes, Racing Brake Fluid is a Super DOT 4 Plus fluid and is perfectly suitable for most vehicles.

Like, oils and lubricants, different vehicles call for different types of fluids. Like engine oils, ATF', gear oils & coolants - Right Product, Right Application.

DOT 3, SUPER DOT4, DOT 4 ESP, DOT 5.1, RACING Brake Fluid and DOT 5.0 SILICONE brake fluids are all non petroleum, Synthetic fluids.

The only Mineral Brake Fluid available is LHM Plus, which is used in some vehicles including selected Rolls Royce and Jaguar systems. This fluid (LHM Plus) is not to be used as Brake Fluid in any application requiring a DOT type fluid.

Power steering fluids are formulated with purpose designed Additives for power steering systems that can provide better control of shuddering noise and squawk over the recommended ATF. Power steering fluids will also outlast ATFs in power steering systems, making them more economical and save on service costs.

The Ford power steering system from EL - FG models requires a higher viscosity fluid than a standard Dexron® III type product. Ford have a specification for this - M2C134-C/D.

Penrite Power Steering Fluid meets this specification.

OEM manufacturers have different specifications for their power steering systems that require the use of different types of fluids.

Penrite have the right product for the right application.

Honda vehicles require their own power steering fluid because they use a heavier viscosity fluid compared to vehicles using a DEXRON® type product.

Penrite HPSO was designed for Honda Power Steering Systems.

Many new vehicles have electrically driven pumps for their power steering systems and they may not require any type of fluid. You should always check this with your manufacturer, your owners manual, mechanic or the Penrite Product Selector.

Penrite LHM PLus fluid replaces both LHM (Liquide Hydraulique Minéral) green fluid and the original red LHS fluid used by Citroen. LDAS can also be used if a Synthetic alternative is required.

Yes LDAS can be used to replace LHM Plus in most applications. There are 2 products to satisfy the manufacturers requests for either a Mineral or Synthetic based product. Many new vehicles ask for Synthetic products and older vehicles ask for Mineral based products where Synthetic products may not be suitable, i.e. some Rolls Royce brake and suspension systems.

Mini Hydrolastic suspension does not require normal suspension fluids. They use a mixture of 33% Anti-Freeze Ant-Boil Coolant mixed with de-mineralised water. Penrite 350,000 Pre mix Coolant is perfect for these systems.

Modern vehicles have very precise and electronically controlled injection systems that need to remain clean and free of deposits or blockages so your engine runs at its optimum performance. The injection system is also very important in controlling the economy and emissions emitted by the vehicle. Dirty, fouled or blocked injectors can cause rough running, poor economy, loss of power, hard starting and higher exhaust emissions being produced. These can also have an adverse affect on other areas such as valve deposits, spark plug fouling and oil dilution.

Using Petrol Injector Cleaner keeps injectors clean and lubricated so they perform as they were intended. Using Penrite Petrol Injector Cleaner every 3000kms keeps the fuel delivery system clean and operating at its optimum performance level, improving economy, restoring lost power, lowering emissions and preventing expensive repairs.

Modern Common Rail diesel engines, atomise the fuel as it is injected into the combustion chamber of the engine. Blocked or fouled injectors stop this from happening, causing rough running, poor economy and a loss of power. Blockages and deposits can also cause premature wear on the injector nozzle and pump and create an extremely expensive repair bill. On a modern system the repair bill can be up to $4000 for a 4 Cylinder Turbo Diesel

Keeping injectors clean and lubricated with Penrite Diesel Injector Cleaner ensures you get the best economy and power and Life from your fuel injectors.

What is Enviro+ DPF Cleaner?

Enviro+ DPF Cleaner is a Bi-metallic Diesel Fuel Additive that when added to the fuel of a Diesel Particulate Filter equipped vehicle, will clean and maintain the DPF as well as provide other significant benefits.

How does DPF Cleaner work?

  • Enviro+ DPF Cleaner’s Detergents clean deposit build up on the injectors ensuring an even spray pattern & optimised fuel flow.
  • Enviro+ The combustion chamber surfaces are conditioned with active metals to promote a uniform burn throughout the combustion cycle. This allows a faster burn at lower temperatures and also improves engine efficiency.
  • Enviro+ DPF Cleaner improves combustion efficiency of the fuel and reduces engine particulate matter by up to 20% with ULSD (Ultra Low Sulphur Diesel) and 30% with B20/ULSD (Bio / Ultra Low Sulphur Diesel), so there is less soot accumulation in the exhaust components ie Turbo Charger, EGR Systems & DPF.
  • Each soot particle emitted from the engine enters the exhaust system coated with our patented bimetallic formulation including two active metals. The active metals work synergistically to oxidize the soot particles and to regenerate and maintain a catalyst coating on the Diesel Particulate Filter with regular use.
  • Enviro+ DPF Cleaner initiates passive regeneration (soot oxidation) at lower temperatures and more complete regeneration replacing the need to remove and clean the DPF or replace it completely from high soot load.
  • Enviro+ DPF Cleaner lowers soot oxidation temperature as shown in chart, allowing regeneration at lower temperatures preventing run-away regeneration which can otherwise damage the integrity of the substrate and shorten the Life of the DPF.

Yes - Penrite Valve Shield is an Upper Cyliner Lubricant that can be used either through a dripper system or by mixing with the fuel.

Yes Penrite Valveshield is a lead replacement fluid and an upper cyclinder fluid combined. When mixed with unleaded petrol it will provide highly effective Valve Seat cushioning to protect against Valve Seat Recession.

Firstly, the cleaners are optimsed for either Petrol or Diesel Fuel systems so they work more efficiently than a single cleaner that is used with both types of fuel.

The difference between the Injector Cleaners and the Total System cleaners, is the Injector Cleaners are designed to clean and maintain the fuel delivery system such as Fuel Injectors, common rails, fuel pump etc, whereas the Total System Cleaners are designed to clean the entire fuel system from fuel tank to inlet valves. The Total System Cleaners are a much more concentrated and stronger formulations and hence have a longer service interval between uses.

At present, only diesel powered vehicles will take Penblue Adblue® if an SCR system is fitted to the vehicle. Not all diesel powered vehicles have this system in conjuction with a DPF (Diesel Particulate Filter).

On some vehicles the filler point is next to the fuel cap, on others it can be in a remote location that is hard to access. The manufacturer should normally advise the customer that their vehicle is fitted with an SCR system that requires Diesel Exhaust Treatment Fluid such as Penblue Adblue®. It should also be clearly documented in the owners handbook.

These systems are generally topped up when servicing the vehicle but if the system runs low, normally an inicator light on the dashboard will warn of low fluid levels. If the fluid needs topping up in between services, owners should be aware of where the Diesle Exhaust Fluid tank is located or contact their dealer for assistance.

Please Note: Diesel Exhaust Fluid is NOT to be mixed with the Diesel Fuel

Foam filter oil is tacky, so as dirt particles stick to the oil and filter. It also means that a lighter coat of oil can be sprayed onto the filter, saving weight on the filter and allowing the filter breathe more freely than an oil soaked filter.

For years the karting community has relied on Castor based oil as the lubricant of choice for high revving Two Stroke engines used in competition and recreational go karts. Developed back over a century ago, initially for rotary aeroplane engines with total loss lubrication systems, it provided good lubricity but no other real protection for Two Stroke or Four Stroke engines.

Modern engines require modern lubricants to satisfy performance and protection standards and Penrite, in conjunction with leading go kart race teams, have developed a brand new, fully Synthetic Two Stroke karting oil to cater for today’s ultra-high performance engines.

KO2ST is a Full Synthetic, Ester based Two Stroke oil, engineered specifically for elite kart racing. It is designed to provide maximum power and protection in all performance Two Stroke engines. It is engineered using an advanced, powerful, virtually ashless, clean burning, high performance Additive package for maximum lubricity and ultra-low carbon and piston deposits. It can be used in all Two Stroke engines used for competition or recreational activity using either a premix or oil injection system. It can also be used for direct injection engines. It is recommended for use in go karts such as 60cc, 100cc, 125cc and water cooled engines such as Vortex, IAME, Rotax, Yamaha, TM and others that require a high performance, Synthetic Two Stroke oil or where Castor based products have been previously used. Suitable for use in ICA Class water cooled go karts, revving to over 21,000 RPM. It can be used with petrol / E10 & other conventional fuels.

Please note this product is not suitable for use with methanol or E85.

Why is this KO2ST preferred in modern engines rather than Castor?

Over 100 years of technology in oil manufacturing and Additive technology provide KO2ST with –

  • Better lubricity for increased performance
  • Less carbon build up on pistons and around ring lands to stop sticking rings and avoid compression related issues due to carbon build up on the piston
  • Cleaner engine - (Castor has no cleaning Additives)
  • Ashless technology
  • Proven performance gains
  • Increased hours between overhauls

10 Tenths Go Kart 2 Stroke Oil

At Penrite we believe in providing ”The Right Oil for the Right Application”. To find the correct product for your vehicle, Click Here to visit the Penrite Recommendation Guide, which will ensure you receive the correct oil for your application.

MC-4ST 10W-40 (PAO & Ester) is a 100% PAO Group IV & Ester Group V Premium Full Synthetic Engine oil that features FULL ZINC+ and SHEAR FREE technology.

The MC-4 Full Synthetic 10W-40 is a Group III Synthetic oil.

Therefore the key diferences are the base oils used to formulate the products.


Penrite are partners, sponsors and product suppliers to the Honda Factory Motocross, Supercross, Off Road and Australian Superbike race teams. Our products are used exclusively in these Honda factory bikes and put through a torturing competition campaign in testing and race conditions to ensure the product on sale passes all expectations and provides our customers with the highest quality products for all conditions.

The Penrite Honda Race teams along with other sponsored and competition users provide us with constant feedback ensuring we stay on top of testing and improvements on our product ranges.

Products used in these racing bikes are the same products found on retail shelves that our consumers purchase for their bikes.


MC-4ST stands for Motor Cycle 4 stroke

To find the correct mixing ratio of oil to petrol in your Two Stroke engine refer to your owner's handbook. The correct ratio is paramount to ensuring longevity of your Two Stroke engine.

Two Stroke engines are more prone to wear compared to four-stroke engines due to the lack of a dedicated lubrication system which means that the parts of a two-stroke engine wear a lot faster. So using the right oil and more importantly the correct ratio of oil to petrol is very important.

Yes, Race Castor can be used as Two Stroke oil but it needs to be mixed just prior to using as it separates from the fuel over time. Castor does not have any cleaning ability so this can promote carbon bulid up in engines using castor as a Two Stroke mix.

It is a special fluid designed to perform multiple tasks on a farm tractor or primarily off road machine. The oil can be used in

It is a special fluid designed to perform multilple tasks on a farm tractor or primarily off road machine. It is designed to be used in -


Penrite manufacture lubricants for all applications. This includes manufacturing oils for vehicles of all ages and Driving Conditions.

The HPR range of oils are late specification HIGH detergency oils designed for modern vehicle applications and service intervals

The Classic Range are LOW detergency oils designed for vehicles made between WWII and 1990.

The Shelsley range are ULTRA LOW detergent oils deigned for Pre -WWII technology engines, especially those not having oil filters.

The Classic and Shelsley range also feature an increased amount of anti-corrosion and rust inhibitor and a tacky Additive to better protect cars that are kept in storage for longer periods.

Heritage oils are mono grade and designed for pre-1920's vehicles. These should not be used in anything post 1920.


Yes Penrite have a complete range of products available for vehicles dating back to the start of the last century.

Products available are - Engine Oils, Gear Lubricants, Greases, Coolant and other miscellaneous products to keep these vehicles on the go. In fact, Penrite are the only company in Australia manufacturing a range of products for yester-years Veteran, Vintage, Classic and Edwardian vehicles.

The Penrite Product Guide has a link to the Pre-70's recommendation guide to find the right product for your classic.

The only Additives used in the Transoil Gear Oil range is an antifoam and some Anti-wear Agents. Excessive foaming, through agitation leads to ineffective lubrication. Water
contamination can also lead to foaming.

These oils can therefore be used in veteran, vintage and motorcycle transmissions without the worry of chemical Additives attacking yellow metals.

The Penrite Transoil range of gear oils is available in grades of SAE 90, 140 and 250.

Yes, Penrite Valveshield is designed for use to replace Lead oxide in unleaded fuels. It acts as a cushion between the valve guide and the Valve Seat preventing VSR (Valve Seat Recession).

Penrite Valveshield can also be used as an Upper Cylinder Lubricant in either dripper systems or mixed with fuel.

Effective coolants/rust inhibitors weren't available when many older cars were in their prime and although water was a very effective heat transfer agent, it still contributed to internal rusting and corrosion of the cooling system. As these vehicles tend not to be driven every day, leaving water alone inside the system will contribute to internal corrosion. Hence we introduced a Classic Car Coolant designed for older vehicles. It is a Type B product that prevents corrosion for up to 3 years. It will also reduce cavitation so the cooling system will work more effectively.

It is coloured clear so as to avoid staining on precious paintwork or engine blocks if a leak or spillage occurs.

No, we do not recommend this at all. Soluble Oils drop out of water when not constantly mixed and can settle in water jackets impeding Coolant flow. A good Coolant is a much better option for older vehicles such as Penrite Classic Car Coolant.

Oils have progressed as have cars since the 1920's. Most vehicles of that era probably had a Summer and Winter Grade of oil. The Summer oil would be heavier to cope with the hotter conditions and the Winter oil thinner for cold starting the engine. In either case, the engine still needed to be warmed up so the oil would flow correctly. The mono grades of the day were also afflicted with rapid viscosity drop, once the oil was hot, providing less protection at operating temperature.

The introduction of Multigrade oils and better VI Improvers, eliminates the need for two different oils. Not only will the modern oils outperform and outprotect the original products, you only need one product to do the job. They warm up faster and provide better high temperature protection due to improved Additive packs and more stable Viscosities.

No - Most of Penrite's marine engine oils carry NMMA registrations (approvals) which are shown on the web page for each product. Penrite have approvals for both 2 stroke (TCW-3) and Four Stroke engines (FC-W). These approvals are the equivalent of an OEM approval and are granted by the National Marine Manufacturers Association which is a board composed of the manufacturers of the original marine equipment (OEMs).

TC-W3 stands for Two Cycle Water Cooled Lubricant.

The TC-W3® symbol signifies an NMMA registered marine oil designed for two-stroke marine engines.


FC-W stand for Four Cycle Water Cooled.

The registration for marine oil brands is conducted on an annual basis. All marine oils registered with NMMA are listed on this website. 

The FC-W® symbol signifies a NMMA registered marine oil designed for four-stroke marine engines and the FC-W(CAT)® symbol signifies an NMMA registered marine oil designed to be compatible with four-stroke marine engines that have an exhaust after-treatment catalyst.


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