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 ...

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 ...

In a rear-wheel, or four-wheel drive vehicle, the differential oil change is probably one of the most overlooked routine maintenance items there is. Luckily, changing this thick, rich-smelling oil 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 ...

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, ...

Q: I own a 2011 Toyota RAV4 V-6 all-wheel-drive with 59,000 miles. I have pulled a boat and trailer for approximately 2,500 miles since the car was new. At my last oil change the dealer recommended ...

Every time I get the oil changed on my 1998 Toyota Tacoma, the service man tries to sell me an oil change for the differentials. I decline because I don't want to pay the money and I'm not sure if the ...

Q: The owner's manual of my 2004 Honda Pilot recommends regular changing of the "VTM-4" rear differential fluid, which costs more than $100 each time. Is frequent replacement really necessary since I ...

A: You are correct that there is no indicator for front differential service since it is part of the transmission (transaxle). The transfer case is a separate component and is different than ...