We earn commissions from purchases you make using links in our articles. Learn more. Most of the time, it’s unnecessary to give your vehicle’s differential cover a second thought; the technology has ...

A differential plays an essential role in pushing or pulling a car in a straight line and efficiently and comfortably moving it through a corner. Basically, it’s a device that allows two sides of an ...

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 ...