SAE Viscosity Grades
Viscosity grade determines how an oil flows when cold and how it holds up when hot. Browse the range by grade.
0W-20 is the lowest cold-crank rating in the ASAS petrol range and the thinnest at operating temperature. The…
1 product
10W-4010W-40 is the broadest-use grade in the ASAS range: it appears in the petrol, diesel and four-stroke…
3 products
15W-4015W-40 is the long-standing heavy-duty diesel grade. Its 15W winter rating is higher than a 10W oil, so…
1 product
20W-5020W-50 is the thickest grade ASAS supplies and the most widely used across the range — it appears in petrol,…
4 products
5W-205W-20 pairs a low-temperature rating close to 0W-20 with the same thin high-temperature behaviour. It suits…
1 product
80W-9080W-90 is a gear-oil viscosity grade, not an engine-oil grade — SAE numbers an axle oil on a separate scale…
1 product