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 ...

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 ...

As far as car fluids go, differential oil is one of the most neglected pieces of maintenance. It could be because the effects of not changing differential fluid on time aren't as immediately obvious ...

While many car enthusiasts know how a differential works, very few actually know what it looks like inside your differential cover as you're driving down the road. Gale Banks, founder of diesel ...