04/11/2026
People always ask what is the best oil? I read and study that question for hours and hours, knowing that in today's world of technology that is a complicated question. There are so many tests used to evaluate oils that you almost need a chemistry degree or more to understand it all. I think there are 3 tests that stand out: Noack Volatility Test, Total Base Number, and the Kinematic Viscosity Test. Amsoil is #1 in all those.