Millers Classic Millerol M30 monograde oil without detergents

What does the “viscosity” of an oil mean?

ByCara Samways

Viscosity is a measure of the thickness of an oil.  The viscosity (thickness) of the oil at low and high temperatures is measured on a scale determined by the Society of Automotive Engineers and given a number known as the SAE number.  Therefore SAE 30 oil will be thinner than an SAE 40.

For details on all of engine oils produced by Millers Oils, please see our full range of Classic Engine Oils, Motorsport Engine Oils and Road Car Engine Oils.

For other useful info please refer to our FAQs page.

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