Posts Tagged: gear oil vs motor oil

Gear Oil vs Motor Oil: What’s the Difference?

Gear Oil Explained: How It’s Different Than Motor Oil and How to Choose the Right Oil Quick Summary After years of working on differentials and drivetrains, I can tell you this: gear oil is not motor oil, and confusing the two is one of the fastest ways to destroy expensive components. Gear oil is designed for extreme pressure and sliding gear contact, not combustion. Choosing the right gear oil viscosity, API rating (GL-4 vs GL-5), and differential type is critical. Get it right, and your gears can last the life … Read More