What does the “viscosity” of an oil mean?

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…

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…

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,…

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…