SAE 0W-20
0W-20 is the lowest cold-crank rating in the ASAS petrol range and the thinnest at operating temperature. The 0W winter rating means it pumps at start-up with the least resistance of any grade here; the 20 rating means it is intended for engines whose clearances and oil pumps were designed around a thin oil. Fitting a thicker grade to an engine specified for 0W-20 is not a safe substitution.
- Cold-start rating
- 0
- High-temperature rating
- 20
Typical use
Modern petrol passenger-car engines specified for 0W-20.
