Často kladené dotazy - Motorsport motorové oleje

Yes. Millers Motorsport engine oils have completely different formulations to our normal road oils. Road oil formulations must comply with the vehicle manufacturers’ specifications, which are increasingly driven by factors such as fuel economy and lower emissions. Millers Motorsport oils make no such compromises and are formulated for maximum performance under the most arduous conditions.

Firstly, Millers Motorsport oils use the highest quality synthetic base oils and additives.
All Motorsport oils are multigrades, and you will recall that additives called polymers are added to make the base oils into a multigrade. The problem with polymers is that they “give up” in areas of high shear, e.g. in the crankshaft journals and between the camshaft and the cam follower. In other words, they become thinner in exactly the areas where they should not.
Millers Motorsport oils use additives called esters to replace the polymer and therefore improve the “strength” of the oil in areas of high shear. More detailed information on esters is available in the article from Race Engine Technology magazine in the motor sport downloads section.

No. The best performance is obtained from a blend of esters and full synthetic base oils. This is why Millers use a blend of 3 different esters with full synthetic base oils and other sophisticated additives in their Motorsport range.

Certain types of engine will perform very well on semi synthetic oil even in Motorsport applications. These are mainly engines from the 50’s and 60’s such as MG, Austin Healey, Jaguar and race engines developed from the Ford Kent and Pinto engines. These were designed to run on a 20w50 and Millers semi synthetic CSS 20w50 is ideally suited to these applications. We also make COR 20w50, developed primarily for short circuit and oval racing. These oils are ideal for these applications and are less expensive than our full synthetic Motorsport oils.

We would recommend this, definitely. It is very difficult to get new piston rings and bores to run in on a full or semi synthetic oil. Millers therefore produce a competition running in oil CRO 10w40. This is a very high quality mineral oil which will protect the cams, followers etc. whilst still allowing the rings to bed in. It can be used for the running in process on both a dyno or on the road. You can download a running in procedure from the Motorsport downloads section of www.millersoils.co.uk.

It depends on the state of tune. Start with the recommendation in the owner’s handbook. If it suggests 5w40 for standard road use and this is your intended use, you should go for CFS 5w40.
If the engine will be driven hard e.g. occasional track days, you can upgrade to CFS 10w40. If it is very highly tuned, raced, rallied, frequent track days etc, it is wise to upgrade to CFS 10w60. You can apply this principle to all applications.

Často kladené dotazy - Motorsport aditiva PHM

You need to consider using a petrol additive if you have an older vehicle that was designed to run on leaded fuel or in any vehicle where you wish to improve it’s performance or fuel efficiency.

Millers petrol additives increase the octane of the base fuel, prevent detonation and allow older engines to run safely on unleaded fuel.

The octane number is a measure of a fuels ability to resist detonation. The higher the octane number, the more resistance a fuel will have to detonation. This enables the engine to be more highly tuned and to release more power and / or improve the fuel consumption. The higher the octane number, the better the fuel.

Yes, Millers VSP Plus. In the past, Tetra Ethyl Lead was introduced into petrol to improve engine performance by adding octane. It also lubricates the valves and prevents valve seat recession. Millers VSP Plus uses a compound of manganese known as MMT to replicate the benefits of lead.
When added to unleaded petrol, it will add 2 octane numbers, prevent the onset of detonation and lubricate the valves. 97 unleaded becomes the equivalent of 99 leaded.

No, The majority are only valve lubricants and do not add any octane. Millers VSP Plus is different as it adds octane as well as providing valve lubrication.

Millers CVL (competition valve lubricant) is specially developed to enable older engines used in motor sport to run on unleaded fuel. It is formulated to comply with the FIA fuel regulations.

Millers CVL Turbo will add 4 octane to the base fuel. This means that up to 103 octane is available by using Shell V Power or a similar premium unleaded fuel. This combination is ideal for Motorsport or track day use in all performance engines.

Yes, no problem for track day and occasional road use, but is not recommended for continuous use. We have a product called Octane Plus (which adds up to 2 octane numbers) which is suitable for continuous use in vehicles fitted with a catalyst.