Please find detailed below a series of Frequently Asked Questions (FAQs) which we hope will be of interest. However, please contact us if you still have questions after reading the list below. To order any products please visit our online shop.
Reviews of Millers Oils products can be found throughout the Frequently Asked Questions section of the website and attached to the products themselves in the store. Use the search box at the top of the page to find relevant information on the products you are interested in.
Myths About Oil How to understand OEMs (Original Equipment Manufacturer), specifications, approvals, warranties and Block Exemption? Here, we have summarized some of the important things you need to know, so that we can dispel some of the myths about oil. When it comes to oils there are two phrases that are often used: “meets specification”…
Understanding The Essentials of Car Maintenance Preventative maintenance will ensure your vehicle runs smoothly for longer, saving you money in the long term and giving you peace of mind. Here are a few tips on The Essentials of Car Maintenance and how to look after your vehicle. Perform an oil change Oil is the lifeblood…
Protect Your Classic Vehicle During Winter It is important to Protect Your Classic Vehicle During Winter. As the nights draw in and the weather turns colder, its important to make some time for your cherished classic vehicles and motorbikes. It’s undoubtedly been a tough year with a lot of uncertainty, but Millers Oils Classic treatment…
What is ZDDP? (Zinc Dithiophosphate) Zinc Dithiophosphate is an anti-wear additive used in lubricants. It is required to protect high load contact points such as camshaft lobes and followers. It also acts as an antioxidant to extend oil life under harsh conditions. Optimum Levels There is an optimum level of ZDDP: too little won’t offer…
We are often asked ‘Can I use synthetic oil in my Classic Car?’ The fear of using synthetic oils in your classic vehicles is a thing of the past – or at least it is with the Millers Oils classic range. Our technical team has used their detailed knowledge of synthetic technologies and additives so…
Can An Oil Change Really Increase Power? When it comes to friction technology, yes it can. Want the proof? We put our CFS 10w60 NT+ competition engine oil to an independent dyno test in a Ferrari 250 GT V12 engine; in a back-to-back comparison with a traditional OE-specification oil, it achieved peak power and torque…
Can an oil change really increase power? When it comes to friction technology, it can. Want the proof? We put our CFS 10w60 NT+ competition engine oil to an independent dyno test in a Ferrari 250 GT V12 engine; in a back-to-back comparison with a traditional OE-specification oil it achieved peak power and torque increases…
Using Synthetic Oils in Classic Cars The fear of using synthetic oils in your classic vehicles is a thing of the past – or at least it is with the Millers Oils Classic range. Our technical team has used their detailed knowledge of synthetic technologies and additives so that Millers Oils are able to provide…
How Can I Protect My Rebuilt Engine? is a question we are regularly asked. Engine building needs to be done correctly with the right parts and the right lubricants to ensure all components are properly protected. It can end disastrously if there’s not enough lubrication when the engine is first started, or if the engine…
Fuel water accumulation In summary there is no additive at present that prevents fuel water accumulation – there could be, but it has possible drawbacks. Bioethanol will hold around 750ppm water and appears bright and clear. At around 1500-2000ppm there will be phase separation and excess water split out. At the moment the new products…
We are very often asked the question ‘What does oil viscosity mean?’ Oil viscosity is the measure of the “thickness” of a fluid and its resistance to flow, and it is an important characteristic of a lubricant. The oil viscosity determines the film thickness and film strength, both of which are critical for reducing friction…
Both types begin with crude oil. Mineral oil is obtained directly from the refining process, whereas synthetic oils are subjected to chemical processing which alters and improves its chemical structure. Synthetic oils therefore have better performance than mineral oils at higher and lower temperatures, but are inherently more expensive. Millers Oils produce many different mineral,…
Multigrade oils These were developed in the 1960’s and have many different viscosities (20W50, 20W60 etc.). Prior to this, all oils were monogrades (ie. 30, 40, 50). This development was made possible by the invention of polymers. Polymers are molecules that expand as they get hotter. Therefore a multigrade oil can have the viscosity…
Millers KR2T is a suitable mineral, 2-stroke oil for both competition karts and bikes. It increases the sealing/compression on the bores which leads to power/torque gains. It is suitable for use in a motorbike unless the engine specifically needs a semi or fully synthetic oil in which case you should use Millers ZSS 2T (semi-synthetic)…
What is a semi-synthetic oil? As the name suggests, it is a blend of mineral and synthetic base oils. The performance (and price) therefore falls roughly mid-way between a mineral and a full synthetic oil. To review the datasheets for our semi-synthetic products, and/or to buy these products online please click on the following links:…
Limited Slip Differential – what type of oil is required? A limited slip differential (LSD) is a type of differential that allows its two output shafts to rotate at different speeds, but limits the maximum difference between the two shafts. In an car, such limited-slip differentials are sometimes used in place of a standard differential, where they…
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…
It is important to use the correct antifreeze for your vehicle so that it does not damage the engine components. Many modern antifreeze products are not suitable. OAT technology is a modern version of coolant as the rust inhibitors in the coolant deplete at a much slower level, like you would find in Millers Alpine…
Our latest Motorsport – Nanodrive low friction engine oils have been designed to offer racers, engine builders and team managers a whole range of valuable benefits. lower friction means less power loss – meaning more power to the wheels and potentially more speed more durable engine due to reduced wear reduced frequency of engine builds reduced…
Millers Oils have designed a range of high performance engine treatments and automotive products, as part of their range ‘Road Cars – Care and Maintenance Products’ designed for today’s motorist. Every day running Stop Leak: used in engines and gearboxes to minimize oil leaks. Screen Wash: offers protection from freezing down to -44 °C and…
Millers Nanodrive engine oils Yes, Millers Nanodrive engine oils are suitable for use in vehicles with catalytic converters. You can find further details of the Millers high performance Nanodrive engine oils by clicking on the following links: CFS 5W40 NT+ Competition Engine oil CFS 10W50 NT Competition Engine oil CFS 10W60 NT Competition Engine…
Which fuel additive? Millers CVL Turbo octane booster 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. If your car is fitted…
Yes, there are several options: Millers CVL (competition valve lubricant) is specially developed to enable older engines used in motorsport to run on unleaded fuel. It is formulated to comply with the FIA fuel regulations. This original CVL remains the most effective solution for running older competition engines, and engines without knock detection and sophisticated engine…
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….
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. You should also consider using Millers additives to protect your car against ethanol in modern fuels. For further details…
Do I need a special running in oil for a motorsport engine? Yes, we certainly recommend this. It is very difficult to get new piston rings and bores to run in on a full or semi synthetic oil. Millers Oils therefore produce a competition running in oil CRO 10w40. This is a very high quality…
Are Motorsport engine oils different to your road car oils and why? 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. Our Motorsport engine oils make no such…
Millers Classic Green Gear GL1 oils will be the closest to the original specification and is available in the heavier viscosities (90 and 140). Use for lubrication of transmission systems which preclude the use of extreme pressure (EP) types, specifically for vintage applications. Click these links to buy Millers Classic Green Gear Oil 90 GL1…
These GL1, GL4 and GL5 references relate to transmission oils. There are 3 levels of performance in classic transmission oils and these essentially follow the development of gear design. GL1 is the lowest level of performance and is only used in vintage transmissions. It is very similar to engine oil, having a very low additive…
What is Millers Worm Steering Box Oil? Millers Worm Steering Box Oil is a special mineral oil for steering boxes*. It is far superior to standard gear oil as it contains friction modifiers, which reduce the friction between the gear and the pinion resulting in a better steering feel. Millers Worm Steering Box Oil is used…
Millers make a special Classic Running In Oil, a mineral, SAE 30 oil, which should be used for the first 500 miles. After this, you should change the oil filter and replace the running in oil with the engine oil of your choice. To view our full range of Classic Engine Oils, please visit our…
Do you have a 2-stroke oil suitable for older 2-stroke engines? Yes. Traditionally, the most popular oil for 2-stroke engines, was an SAE 40 mineral oil. However modern 2-strokes require a low smoke, semi synthetic 2-stroke oil with a much lower viscosity, SAE 15. Older 2-strokes, do not appreciate these thinner oils, so Millers produce…
Which Oil for Minis? Which oil for Minis and other applications where the engine and gearbox share the same oil? Millers Oils do a Classic Mini Oil 20W50 (from our Classic Pistoneeze range). This product is a moderate detergent, premium SAE 20W50 multigrade mineral engine and gear oil. It has been specifically developed for classic Mini engines,…
Millers Classic Sport 20w50 semi synthetic This oil, Millers Classic Sport 20w50, is a semi-synthetic multigrade, with a higher performance capability than the mineral version Millers Classic 20w50 multigrade engine oil. This semi-synthetic oil, has been specifically developed for high performance classics such as Jaguar, Aston Martin, MG, Triumph, Porsche, Alfa Romeo etc. It is perfect…
Millers Classic Pistoneeze 20w50 (previously called Millers Classic 20W50) is a moderate detergent, premium, mineral multigrade and is typical of the viscosity of oil specified for the majority of engines from 1960 to 1980. It is specifically engineered for use in older engines, providing they are clean inside, which incorporate modern filtration systems. Being a multigrade,…
Are modern engine oils suitable for older vehicles? No. Modern engines are designed to run on very low viscosity (thin) oils, such as 0W and 5w which are now common. These are much too thin for older engines, which were designed to run on 20w in the winter and 30 or 40 grades in summer. …
Vintage cars/bikes, ie. pre-WW2, had very primitive oil filtration systems and used non-detergent oils, such as our Millerol range. The Millerol range contains anti-wear and anti-corrosion additives, but does not contain detergents which can attack yellow metals. A lower viscosity oil would be needed in the winter, such as Millerol 30 and a higher viscosity…
Not at all. Modern engines are designed to run on an oil with very low viscosity (thin), such as 0W and 5W. These are too weak for older engines, which have been designed to operate with a viscosity of 20w in winter and 30 or 40 in summer. However, our later formulations, Pistoneeze and all…
Generally the answer is yes for older vehicles, as diesel engine oils have higher detergency levels. It is important to refer to the vehicle manufacturers handbook to establish exactly which specification of oil is required. This is vital if your car has extended service intervals and you are still within the warranty period. However the…
Here we try to summarise what are the specific characteristics and advantages of synthetic oils? As with mineral oils, there are differing levels of quality within the definition of synthetic oils, but the general advantages are: Better flow at low temperatures enabling thinner oils to be manufactured. Thinner oils are required by modern engine designers…
Our Motorsport – Other Products range includes many items, including the following: Racing Brake Fluid 300 Plus: extremely high dry boiling point, at least 310°C, with exceptional resistance to vapour locking and good compressibility for improved brake feel. Performance Brake Fluid DOT 5.1, a long life fluid for all types of hydraulic actuated brake and clutch…
Engine oils are formulated using specific additives developed to maximise performance of today’s road cars. Proven to deliver improved performance, cleaner running, greater fuel efficiency and longer engine life. The latest developments are the energy efficient oils for passenger cars that allow drivers to save on fuel costs and reduce the wear on their engines….
Millers Oils have a full range of transmission oils for Manual gearboxes and Automatic transmission systems designed to meet the latest Original Equipment Manufacturers specifications in cars and light vans. Automatic transmission fluids include products meeting Dexron II and Dexron III requirements. Our Product Range Manual Gearbox Oil Automatic Transmission Fluid Use the Millers Oils…
High performance, quality oil and lubricants taking care of vehicle servicing requirements. Millers Oils supply workshops and professional users world-wide with technically advanced lubricants and fuel treatments – many incorporate technology developed at the highest levels of motorsport. That means real improvements in performance, protection and reliability, for any vehicle you’re working on. A difference…
Automotive fuel additives keep modern engines in good condition to give the best performance. Using ECOMAX fuel treatments, drivers report “better than new” engine performance – improved response and better fuel economy. That’s not all, ECOMAX helps combustion, giving a cleaner running engine which is better for the environment. The Benefits of Automotive Fuel Additives…
Millers Oils Motorsport – Fuel Additives include flame front control to protect against detonation damage. CVL Turbo: Octane Booster for Ultimate Performance. Adds up to 4 octane (40 octane points) to base fuel. This means that up to 103 octane is available (when added to a premium brand super unleaded fuel) to those seeking outright…
Our Motorsport – Engine Oils range includes: Triple Ester Engine Oil: these fully synthetic formulations combine 3 synthetic esters with high performance additives (including the optimum amount of ZDDP Zinc antiwear additive) and friction modifiers to provide maximum power output with minimum wear. The high ester content reduces the amount of polymer in the formulation…
Millers Classic Specialist Oils Our Classic Specialist Oils are supplied directly from Millers Oils in the UK. The product links within the text below will take you directly to our online shop where these products can be purchased: Worm Steering Box Oil: high viscosity oil for worm steering boxes, containing low friction additives for improved…
The Classic – Miscellaneous products are supplied directly from Millers Oils in the UK. The product links within the text below will take you directly to our online shop. Brake Fluid: DOT4. Stop Leak: a product to be added to the oil in an engine or gearbox to help minimise leaks. Extra Cool: cooling enhancer and corrosion…
Millers Oils Classic Fuel Additives Despite the fact that mainstream leaded petrol disappeared in 2000, the role of lead in fuel is still widely misunderstood. The removal of lead from fuels and the addition of ethanol can cause problems for certain classic vehicles ranging from valve seat recession to fuel system corrosion. Ethanol in fuel…
Classic – Gear & Transmission Oils All products within our Classic – Gear & Transmission Oils range are supplied directly from Millers Oils in the UK. The product links within the text below will take you directly to our online shop where you can buy these products. There are a range of products with different viscosities…
There are several different Classic Engine Oils products The Classic Engine Oils are supplied directly from Millers Oils in the UK and have been specifically developed to enhance and protect the engines of desirable Vintage, Veteran and Classic vehicles. The product links within the text below will take you directly to our online shop. Millerol – non detergent monograde The…
We have received questions concerning VSP versus Ecomax Pricing as follows: Q: Do Millers have any plans to introduce the new additives as a more cost effective product, ie. equivalent to the ECOMAX bottles/pricing. At the moment the ECOMAX is very cost effective because each 500ml bottle treats 10x50L tanks whereas each bottle of 250ml…
Yes, it’s going to happen (move to SP 95 containing ethanol), the trend is to push up the bio content, but we are not sure if it will go beyond 10%. We have been looking at some vehicle fuel specs recently and the claims were compatible with >10% Bioethanol. This means it is likely we…
