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 ...
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 ...
To turn engine power into controllable motion, cars rely on something called the differential. A differential allows wheels on the same axle to rotate at different speeds. If you want more information ...