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
2011 Subaru Legacy $106 $36.36 $70.00 26% $143.86
2007 Mazda CX-9 $85 $15.22 $70.00 30% $122.72
2012 Ford Explorer $107 $36.92 $70.00 25% $144.42
2004 Cadillac Escalade $106 $36.36 $70.00 26% $143.86
2004 Audi TT $70 $0.00 $70.00 34% $107.50
2009 Porsche Cayman $108 $37.76 $70.00 25% $145.26
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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

Excellent Rating


YourMechanic Differential/Gear Oil Replacement Service

Average Rating

4.9/5

Number of Reviews

62

Rating Summary
56
5
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56
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Ben

38 years of experience
883 reviews
Ben
38 years of experience
Ben came to the appointment prepared to work. He did everything I requested and offered a few suggestions for routine maintenance that I should take care of. Even told me approximately how many more miles I'd get before the services would be needed. We were very pleased with his work and will definitely request him for all future appointments.
2009 ACURA TL - DIFFERENTIAL / GEAR OIL - KATY, TEXAS

Adrian

28 years of experience
74 reviews
Adrian
28 years of experience
Adrian came back Ann's took care of the problem. Thank you!!
2004 FORD MUSTANG - DIFFERENTIAL / GEAR OIL REPLACEMENT (REAR) - MANTECA, CALIFORNIA

Howard

27 years of experience
79 reviews
Howard
27 years of experience
This is a great guy and straightforward also professional.
1997 DODGE RAM 1500 - DIFFERENTIAL / GEAR OIL - LITHONIA, GEORGIA

Harish

24 years of experience
523 reviews
Harish
24 years of experience
Did quick good work was on time and even offered to come earlier
2009 CHEVROLET TAHOE - DIFFERENTIAL / GEAR OIL REPLACEMENT (FRONT) - CHARLOTTE, NORTH CAROLINA

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