What are the advantages of a multigrade oil?

A multigrade oil is an oil whose properties have been enhanced to reduce its viscosity with temperature. Thereby, compared to monograde oil, multigrade oil is more fluid at low temperatures and thicker at high temperatures.

In concrete terms, this can be explained as follows:

• When a vehicle is stationary (for several hours), all the engine oil drops back in the crankcase. When the vehicle starts again, the oil needs a certain time (a few microseconds) to reach and lubricate the different parts of the engine. Since a multigrade oil is more fluid at low temperatures, it will reach all the engine components faster than a monograde oil, thereby reducing wear at start-up.
• Using multigrade oils can result in fuel savings of 1.5% to 3% compared to monograde oils.

A multigrade oil offers better engine protection at low and high temperature as it maintains optimum viscosity across the whole engine operating temperature range.