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

Casual motorists generally take no interest in crawling under their vehicles on a Saturday afternoon. And, when was the last time you heard someone express excitement over dropping their car off at the dealership for maintenance?