Kroon Oil Classic Multigrade 10W-30

Mineral 10W-30 multigrade engine oil for 1960s to early 1980s classics

Kroon-Oil Classic Multigrade 10W-30 is a mineral SAE 10W-30 engine oil for classic petrol and diesel engines in passenger cars and light vans.

Kroon-Oil points to cars from the 1960s, 1970s and early 1980s that call for 10W-30.

Key properties

• Grade: SAE 10W-30, mineral base oil
• Listed: API SF/CC, CCMC G2/D1, Ford M2C153-C and M2C9011-A, GM 6041M / 6085M / 6136M
• Viscosity: 72 mm²/s at 40 °C, 11.0 mm²/s at 100 °C, viscosity index 139
• Cold viscosity 6,800 mPa.s at -25 °C, HTHS 3.18 mPa.s
• Total base number 3.5 mg KOH/g, sulphated ash 0.86%
• Packs: 1 L tin and 60 L drum

Choosing the right oil

The two numbers matter: 10W is the thinner cold rating, 30 is the hot rating. This is the thinnest of the Classic Multigrade oils, so it is the sensible pick when the handbook calls for 10W-30 specifically and for engines that need easy cold starts. If the manual asks for 15W-40 or 20W-50, choose the grade it names rather than going thinner as a general rule.

A multigrade is the better all-season option than a straight monograde. It is also described as not loosening old deposits, so it is workable in an engine that has run on a mineral oil for years.

Check the manual for the exact grade before you order.