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 ...

CARS.COM — Does an all-wheel- or four-wheel-drive vehicle require additional scheduled maintenance? That’s a question many consumers consider when car shopping. The chances are it does, compared with ...

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 ...