Gear-obsessed editors choose every product we review. We may earn commission if you buy from a link. Why Trust Us? Changing the car differential oil—it's one of the most-overlooked maintenance tasks ...

Changing the car differential oil—it's one of the most-overlooked maintenance tasks on non-FWD light trucks, SUVs, and passenger cars. Because the differential is at the rear and under the car, it ...

Virtually every road car is equipped with some sort of a differential and it’s vital to the way a car performs – without one negotiating a corner would be difficult. The differential’s main purpose is ...