What is a Limited-Slip Differential (and What Type of Gear Lube Should I Use)?

Your differential allows you to corner safely while putting maximum traction to the ground. Here’s how it works, and what kind of gear lube to use.



More AMSOIL Products Available in the Award-Winning Easy-Pack

Sometimes an idea so great comes along it makes some wonder, “Why didn’t anyone think of this sooner?” Case in point: AMSOIL easy-packs.



Should I Change Fluid in a Filled-for-Life Transmission?

Automatic transmission

Filled-for-life transmissions and differentials are becoming more popular. But it’s best to change fluid in these components at least once. Here’s why.