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 ...

Changing gear oil is one of those often-forgotten maintenance items on our rigs. Whether it's the smell of gear oil, the disposal of gear oil, or the mess that can sometimes come from popping a cover, ...

While it’s likely seldom done, some vehicles’ maintenance schedules do include an interval for changing the differential fluid, though perhaps only under “severe service” conditions such as frequent ...

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 ...

Let's be honest, the average person has never thought about whether differentials even have fluid. They're not like engines, which require oil changes after about 5,000 to 10,000 miles (or 12,500 if ...