Vive la Differential at Top Tech Auto Repair Royal Oak in Royal Oak
January 18, 2020
There are a lot of drivers in Royal Oak who are due for a differential service, but had never heard of a differential before. With front-wheel drive being so common in Michigan these days, the differential is just taken care of during a transmission service, so most Royal Oak folks don't even have to think about it. And rear-wheel drive differentials don't need to be serviced for years, so it's understandable that it's not something on the top of your mind. It's not uncommon for people in Royal Oak to not know they have a differential, let alone know that it needs service.
To better understand what a differential does, think about a track at any Michigan high school. There are lanes marked off on the track. For the longer distance races, the starting lines are staggered. The starting lines for the outside lanes are ahead of the starting lines for the inside lanes. That's to compensate for the longer length of the outside lanes. Staggering the starting lines means that each runner has the same distance to run.
The differential compensates for the difference in speeds between the inside vehicle wheel and the outside wheel in a turn, because they have to travel together through slightly different distances.
It's a very important function. When you think of it, all the power to get a vehicle moving goes through the differential. Most cars weigh between 3,000 and 6,000 pounds (1,400 and 2,800 kg) – trucks even more. The power from the engine goes through the transmission and then through the differential to the drive wheels.
That's a lot of work and requires very heavy duty parts. And those parts need protection. The differential fluid lubricates the gears in the differential and keeps them cool. The fluid eventually gets dirty and worn down. Some kinds of differentials require special additives that break down over time. So manufacturers recommend intervals for when to replace your differential fluid.
Your knowledgeable Top Tech Auto Repair Royal Oak service technician will drain the used fluid and check it out for metal bits, which could be a sign of excessive wear on the gears. He'll then replace the fluid and install the additives if necessary.
Your Top Tech Auto Repair Royal Oak service advisor can look up the vehicle manufacturer's recommended service interval or you can check your owner's manual.
At Top Tech Auto Repair Royal Oak, we've been providing quality automotive service for our valued Royal Oak customers since
Top Tech Auto Repair Royal Oak
3110 Rochester Rd
Royal Oak, Michigan 48073
248-585-0980
http://www.toptechautorepairroyaloak.com
Need Service?
More articles from Top Tech Auto Repair Royal Oak
Alternator Facts (Failing Alternator)
February 1, 2026
If you notice that your headlights are flickering at night, that's something to pay attention to. While there could be many different things that could cause that problem, one possibility is your vehicle's alternator. The alternator takes mechanical energy from the engine and turns it into electr... More
NOT JUST ANOTHER CUSTOMER (Finding the Right Service Facility)
January 25, 2026
You might remember a hit TV sitcom that was set in a bar, a place where "everybody knows your name." The idea, of course, is people feel more comfortable where they aren't just another customer among many; they're special because their relationship goes back a few years. That comfortable relat... More
Light's Out! Trouble Ahead (Exterior Light Bulb Service)
January 18, 2026
Whether or not your exterior light bulbs are all working probably is not at the top of your list when you think about your vehicle. But those exterior lights are more important than you think, and they're vital to your safety and that of other drivers near you. Headlights are important. Not onl... More