My BMW i3’s rear differential has been a gigantic pain in the butt in that — thanks to a Technical Cost Reduction by BMW after the first model-year — it no longer features a fill plug. How, then, am I ...

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 ...

Your rear differential is one of the most unappreciated parts in your car or truck. It does what might be the hardest job of all of those components, multiplying torque from your transmission and ...

Autoblog may receive a share from purchases made via links on this page. Pricing and availability are subject to change. Think your rear differential is due for some re-lubrication? Larry Kosilla is ...

A differential is one of a car's most important moving parts. It's the thing that takes the torque from the car's driveshaft, and distributes it among the driven wheels. Since there's a lot of ...

Quadruple-digit-horsepower 2003-2004 Terminator Cobras are so commonplace these days that it’s easy to forget the cars were designed for nearly one-third that figure. Add sticky tires, hard launches, ...

Our friend Jason Fenske from Engineering Explained has already taught us how to change the oil in our cars. It's an easy process, and it's one that will allow you to get closer to your own machine ...