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 to help reduce fuel consumption and emissions.
Higher film strength thereby reducing wear.
More stable and less volatile at high temperatures, reducing oil consumption.
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…
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…
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,…
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…
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 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…
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