While there are other nuances to motor oil classifications that need to be understood before changing or topping off the oil in your car's engine, one of the first things to address is the viscosity, ...

In the world of automotive engine oils, 0W-20 is one of the thinnest, though oils as thin as 0W-8 are now used. The 0W stands for 0-weight in winter, and the 20 stands for 20-weight when the oil is ...