BIMROSE LUBRICANTS Pty Ltd 

Every week we get many questions ranging from the sublime to the totally absurd. Here we have answered the serious questions we are frequently asked. If you don’t find your answer here then call us or send an email and we will attempt to answer you. The answers here are for information only and should never be the basis for product selection alone.

Why should I use Bimrose Lubricants?

Bimrose Lubricants are refined from the best Australian base stock crude oils to an exacting specification developed over the last 10 years by several experts in the field of lubrication. You might say it’s not what we put in that makes us so much better, but rather what we take out that ensures you get 100% pure lubricants. Every batch of Bimrose Lubricants must meet an exacting specification, much greater than national vehicle maker requirements, before it is packaged and sold to you.

In every case our lubricants will exceed the required specification for your application. This will ensure that when used in accordance with our instructions, you will enjoy substantially lower maintenance and running costs. Usually you should notice improvement in vehicle or machine economy and easier starting both cold and hot.

Will Bimrose Lubricants affect my warranty.

No.   No manufacturer can make you use a particular brand of oil in their machinery by using the threat that it will void your warranty.  As long as the product meets the equipment manufacturers recomendations you may use that product. In all cases you will be exceeding the manufacturers requirements for lubrication specifications. At present we can provide a lubricant for over 95% of applications and you have peace of mind knowing your new vehicle warranty will not be affected. 

I have heard that your products will improve worn and tired engines. Is this a fact?

This is a very difficult question. We have had many customers tell us that our product has improved their engine’s performance or slowed or even stopped oil use, but we cannot make a blanket statement due to so many variables. We would always recommend that a worn engine be rebuilt when required however this is not always easy to do. If you use one of our products matched to the condition of your engine, you will normally see a vast improvement. This cannot be guaranteed as often the engine is too worn to respond.

Does your oil actually stop wear in an engine?

Once again we can’t make misleading or false statements, but experience has shown that in most cases when an engine is changed to our products, wear does appear to halt. If you resume use of the original lubrication, then it would appear that wear resumes as before.

Why isn’t everyone using your product?

We wish we knew the answer to that question. Certainly everyone could benefit, but it seems that people in a position to know the benefits are also the people who rely on routine wear as a means of having work to do repairing engines and associated gearboxes, differentials an so on. We have seen evidence that engines running with our products will achieve service far in excess of normally expected.

Some people have said I can extend my service interval. Is this possible?

Over the years service intervals have been changed by different manufacturers with some unexpected results. Generally if using our products we suggest that the longest recommended interval can be adopted for each vehicle, and if it is in very good order and used and serviced regularly, service intervals may be doubled. But always ask as we have heard some interesting stories from customers. One trucking customer routinely changes the engine oil at around 100,000 kilometres, with no apparent problems. Another customer has extended the recommended interval for his car from 5,000 kilometres to 40,000 kilometres and also says the vehicle runs better now than when it was new. We believe that if you change our engine oil at up to double the manufacturers interval, you should never have lubrication related component failure. When the oil has been tested at these intervals, it has always been found to be still in excess of the required standards. Theoretically if we assume your car has 50,000 kilometres service life left at the time you change to our oil and you do another 50,000 kilometres, then change back to normal oil you will still have the original 50,000 kilometres left.

When should I change my oil filters?

Your filters should always be changed as recommended by the vehicle manufacturer. We do however suggest the use of a premium quality filter, as there are many filters that do not provide adequate filtration.

Can I use Bimrose Lubricants in my motorcycle?

Yes. Any Bimrose engine oil can be used in 4-stroke motor bikes as there is no friction modification in the oil to affect the clutch packs. You should always check the oil specification first to ensure it meets the motorcycle lubrication requirements.

I can buy oil for less than ten bucks at the local supermarket. Why should I use yours?

We get this objection from time to time, but all our customers realise the benefits of good lubrication. Supermarket oil will work in your new $35,000 car, or even your $2,000 clunker, but eventually you will pay big money to repair it at a fraction of the service life it could have achieved. You get what you pay for, as usual!

Can I mix full synthetic oils with mineral based oils?

No. This is never recommended. The two oils will have different formulations and and chemical characteristics and as such should not be mixed.

What does the "w" mean in the oil specification?

The "w" means the weight of the oil. e.g. a 15w50 oil will have a cold rating (40 degrees) of 15 and a hot rating (100degrees) of 50. If there is no "w", the oil is probably a monograde and is designed for special usage conditions. It will probably not be suitable for modern engines which require a miltigrade oil for full protection. One motor oil company markets oil with the format xxx30, xxx50 etc., (where "xxx" is their oil type designation) You really need to read the specifications to understand what this oil is. Bimrose Lubricants always use the international marking system to identify their products.

I have heard someone mention oil film strength. What does this mean?

Normal oils have a film strength of around 750-1500 P.S.I., while Bimrose lubricants have a film strength of over 2,000 P.S.I. Some of our oils are up to 3,500 P.S.I. Usually the higher the number the better, provided you are comparing similar duty and viscosity rated oils.

Does an engine run cooler with your oil?

The engine should always run at the temperature it was designed to operate at. If an engine runs too cold the exhaust gasses will be laden with unburnt fuel and high in toxic gasses. If your motor runs too cold you should replace the thermostat to correct the problem. 

In most engines the oil temperature will be lower due to the unique properties of our oil. Less varnish deposits inside you engine and particularly under the pistons will allow our oil to remove more heat from these parts. A clean inside of the sump pan allows efficient cooling of the oil. In many cases you can dip the oil after the engine has been running and feel the difference.

How will your oil affect the compression of my engine?

In the real world, when used in an engine in good condition, you will get a better seal on the rings in the bore. This will improve compression, thus increasing power and reduce blowby of burnt and unburnt gasses.  Less oil will be allowed into the combustion area and therefore there will be less burnt oil.

Can an engine start to use oil when changed to Bimrose Lubricants?

This is possible but rare. If the engine has been run on a low grade oil for years and then  changed a high detergent oil from any company, oil consumption will follow. This condition is rarely reversible as the motor was probably badly worn tp start with and would been close to failure regardless of the oil type used.

What is ashless oil?

In a two stroke motor this means that the oil added to the fuel burns completely with the fuel.

How does your U.C.L. & Fuel treatment work?

Without getting too technical, it cleans the fuel system and combustion chamber on a continuous basis while the engine is operating. It also conditions the fuel by breaking the molecular chains in smaller segments. This makes the fuel particles smaller so they can burn faster and more completely. This is like you trying to light a block of wood with a match. If you shave it to small pieces it will ignite and burn easily.

The benefit to you is longer life from the fuel system parts, less need to retune the motor, and improved economy. Some customers have reported up to 15% fuel savings when using our lubrication and U.C.L. & Fuel treatment. This product can also be used to improve sump drainage when added just prior to an oil change at around 2% of the oil volume.

Is your grease water proof?

No grease is truly water proof, but our customers argue that our Molylithtac and Super red greases, are so repellent that they become water proof, particularly in boat trailer wheel bearings.

Can you supply a universal oil?

This is possible and we have done so in the past. We would recommend the use of an appropriate oil in each compartment as this will ensure optimum service life of the components.

What consideration should I make with a ski boat?

Ski boat motors (marinised car motors), should have a larger sump than normal, to allow better cooling, because they do not have sufficient air flow around the sump. Ventilation around the engine would assist in better cooling.

What is the best oil to use in my gearbox?

In general you can use a lighter oil provided it meets the manufacturer’s requirements, to give smoother shifting. Likewise you can use heavier oil in a worn gearbox to "tighten" the shift. Contact us for advice on your application.

Can using too "thick" an oil cause trouble with hydraulic lifters?

It is very important to use the correct oil for your engine. If the wrong oil, or in some cases a cheaper oil I used, some hydraulic lifters will not bleed or pump up properly.

Can I measure the temperature of my engine oil?

Yes you can, but care must be taken as to the measurement point. Preferably the oil temperature should be taken from a probe immersed in the oil in the sump pan. If the measuring device is mounted on the exterior of the sump with good positive contact reasonable results will be achieved.

What does TBN Stand for?

The Total Base Number signifies the ability of an oil to handle acidity. The higher the number the greater that ability. A good start is 8 to 10 but some marine oils may go as high as 70 to handle very high sulphur fuels, which are bought off oil tankers that cruise the oceans of the world awaiting a destination.
 

For further information on any of our products, please contact your nearest dealer, or send us an email to

For expert advice on which lubricant will best suit your application, please send an email to  Please don't forget to include your contact information and type of machine or vehicle you have.