What is a semi-synthetic oil?

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Millers Classic 20W50 Mineral Engine Oil
Do I need a different oil for a diesel and petrol engine?
11th April 2013
Millers Classic Sport 20W50 Semi Synthetic Engine Oil

Millers Classic Sport 20W50 Semi Synthetic Engine Oil

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:

Millers Classic Sport 20W50 (from the Classic Pistoneeze range)

Millers Classic Sport 20W60 (from the Classic Pistoneeze range)

Millers CTV 20W50 semi synthetic engine oil

Millers Trident 5W30 semi synthetic engine oil

Millers CSS 20W60 semi synthetic engine oil

Millers XFE semi synthetic 10W40 diesel engine oil

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