Back to all

Time for Differential Service at Tuffy Tire & Auto Service Westerville?

December 19, 2021

Hello Westerville - let's talk differentials. If you have a rear-wheel drive vehicle, your differential is on the back axle. With front-wheel drive cars, the differential is up front. All-wheel drive and 4-wheel drive vehicles have three differentials - front, rear and in the middle. So you see, you've got a differential (or two or three) and it needs service now and then.

What does your vehicle differential do? Well, it compensates for the differences in speed between your outer and inner wheels in a turn. Using the dimensions of a typical car, let's compare the distance the wheels travel from the start of a turn through to the completion of the turn.

The inside wheel travels about 12.6 feet/3.8 meters. How much farther does the outside wheel travel? About 18.8 feet/5.7 meters – over 6 feet/1.9 meters more. This means the outer tire has to rotate 9 times in the same amount of time that the inner tire has to rotate only 6 times - so the outer tire has to spin faster in order to keep up. The differential makes this possible.

The gears in the differential are cooled and lubricated by differential fluid. It's this fluid that needs to be serviced. Small bits of the gears break off and are suspended in the differential fluid. The dirtier the fluid, the faster the gears wear.

So your Tuffy Tire & Auto Service Westerville technician drains the old fluid out and replaces it with fresh fluid. Some differentials also need a special additive that is put in at this time.

So when should you have your vehicle differential serviced? Intervals vary from vehicle to vehicle – and may be as short as 15,000 miles/24,000 km – so check your vehicle owner's manual or ask us at Tuffy Tire & Auto Service Westerville. If you frequently drive with heavy loads, tow a trailer or drive in hot Ohio conditions, you may need to change differential fluid more often. Servicing your differential on schedule at Tuffy Tire & Auto Service Westerville can save a pricey replacement down the road.

Give us a call.

Tuffy Tire & Auto Service Westerville
7128 State Route 3
Westerville, Ohio 43082
614-818-9036
http://www.tuffywesterville.com

More articles from Tuffy Westerville

Winter Watch List (Winter Maintenance Items)

January 26, 2025

Don't love winter weather? Here's a list of four things you need to keep a watch on during the winter months. Let's start with coolant levels. Coolant is as important in cold weather as it is in hot weather. Think of the term "anti-freeze." Your coolant needs to be adjusted for climate and temp... More

Bad Vibes (Disc brake rotor problems)

January 19, 2025

If you were to name the most important safety feature on your vehicle right now, what would your answer be? A lot of driving experts would agree that its your brakes. Most newer vehicles use a well-engineered and efficient style of brakes called disc brakes. The name disc brakes comes from one ... More

Getting Off to a Running Start (Starter Replacement)

January 12, 2025

When you start your vehicles engine, theres another motor that makes that whole process possible. Its called the starter, and its a small electric motor that gets your vehicle running. As you can imagine, its quite a chore for a little electric motor to turn over the big engine that powers you... More