Symptoms of Bad or Failing Differential / Gear Oil

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Cost of Replacing Bad or Failing Differential / Gear Oil

If your car has exceeded its gear oil service interval, or if you hear the differential whining, you may need to replace the differential/gear oil. Our certified technicians can come to you and diagnose the problem. You will receive a $30 credit towards any follow-up repairs that result from the diagnostic. Following are example prices for Differential/Gear Oil Replacement. Click on the button below to get an upfront quote for your car.

Cars Estimate Parts Cost Labor Cost Savings Average Dealer Price
2006 Mercury Monterey $104 $34.28 $70.00 26% $141.78
2007 Volvo XC70 $105 $35.06 $70.00 26% $142.56
2007 Chevrolet Suburban 2500 $85 $15.22 $70.00 30% $122.72
2003 Cadillac DeVille $104 $33.76 $70.00 26% $141.26
2010 Audi A6 Quattro $105 $35.06 $70.00 26% $142.56
2006 Maserati Spyder $105 $35.06 $70.00 26% $142.56
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How to Diagnose Bad or Failing Differential / Gear Oil?

Gear Oil

Modern vehicles use a variety of fluids for the lubrication of their various mechanical components. Since many of the components are made of metal, they require heavy duty oil that is capable of protecting the components from damage due to overheating and metal-to-metal contact. Automotive lubrication fluids play a very important role in the overall performance and service life of a car and can cause components to become seriously damaged when they run low.

One of these types of fluids is the differential oil, also commonly known as gear oil, which is used to lubricate manual transmissions and differentials. Since gear oil is basically the equivalent of what engine oil is to the engine, it plays a very important role in protecting the differential and transmission, allowing them to do their jobs safely and smoothly. When the fluid gets dirty or contaminated it can put the components that it is meant to protect at risk of accelerated wear and even permanent damage. Usually bad or failing differential oil will produce a few symptoms that can alert the driver of a potential problem that should be serviced.

Vehicle has exceeded gear oil service interval

All vehicles come with a maintenance schedule for its fluids and filters that is based on mileage. If the vehicle has exceeded the recommended mileage for service of the gear or differential oil it is highly recommended to have it changed, as old oil may not provide the same level of protection as clean, fresh oil. If the vehicle’s components are ran using old or dirty oil, this may leave them susceptible to accelerated wear or even serious damage.

Differential or transmission are whining

One of the symptoms that is most commonly associated with bad or failing differential or gear oil is a noisy transmission or differential. If the gear oil runs low, or becomes excessively dirty, it can cause the gears to whine or howl as they turn. The whining or howling is caused by lack of lubrication and may increase in volume as vehicle speed increases. A howling or whining differential or transmission should be inspected as soon as possible in order to prevent the possibility of serious damage.

Differential / gear oil is just one of the various important lubrication fluids that many vehicles use in their normal operation, however, it is often one of the most forgotten fluids due to the fact that they are not serviced nearly as frequently as others. For this reason, if you suspect that your differential or gear oil may be dirty, contaminated, or past the recommended maintenance schedule, have the vehicle inspected by a professional technician, such as one from YourMechanic. They will be able to replace your differential / gear oil if necessary.

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Recent Differential/Gear Oil Replacement reviews

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YourMechanic Differential/Gear Oil Replacement Service

Average Rating

4.9/5

Number of Reviews

53

Rating Summary
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48
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David

13 years of experience
274 reviews
David
13 years of experience
Fantastic service!! Thank you for saving me from sitting in an auto repair shop for the entire morning!! Will absolutely be using Your Mechanic and especially David again!
2003 GMC YUKON XL 1500 - DIFFERENTIAL / GEAR OIL REPLACEMENT (REAR) - CONCORD, CALIFORNIA

Jose

12 years of experience
235 reviews
Jose
12 years of experience
Jose showed up on time and completed the work quickly. He was friendly and knowledgeable and was upfront with his recommendations as well as letting me pick his brain for his expertise for about 10 minutes after he had completed his work. I highly recommend Jose!
2011 JEEP WRANGLER - DIFFERENTIAL / GEAR OIL REPLACEMENT (REAR) - TAMPA, FLORIDA

Jonathan

19 years of experience
299 reviews
Jonathan
19 years of experience
Don't force me to leave a comment here. Otherwise I'll leave a comment commenting about the comment requirement.
2009 HONDA PILOT - DIFFERENTIAL / GEAR OIL REPLACEMENT (REAR) - DENVER, COLORADO

Alfred

10 years of experience
186 reviews
Alfred
10 years of experience
Alfred was prompt, friendly, knowledgeable, and did great work on my vehicle. I will definitely boo him again!
2006 SUBARU LEGACY - DIFFERENTIAL / GEAR OIL REPLACEMENT (REAR) - OAKLAND, CALIFORNIA

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