What Kind of Oil Is 5W-20?

5W20 oil is primarily a winter viscosity grade oil. The number immediately before the 'W' represents the oil viscosity at 0°F. The lower this number is, the better it will perform at low temperatures. 5W is a low viscosity rating that provides better engine performance and lubrication during winters.

What does 5W-20 oil mean?

5W20 Meaning

The term 5W20 describes the SAE class according to which the engine oils were specified. They are multigrade oils with very good flow properties at low temperatures. 5W means that the oil is suitable for winter temperatures down to -35 °C.

What is 5W-20 motor oil used for?

5W-20 oil is best for those who live in colder climates with low temperatures. It can be used for light-duty applications, for engines that do not reach very extreme temperatures. 5W-20 oil provides excellent start-up performance in colder temperatures.