Mercury Grand Marquis Differential/Gear Oil Replacement at your home or office.

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Differential/Gear Oil Replacement Service

How much does a Differential/Gear Oil Replacement cost?

On average, the cost for a Mercury Grand Marquis Differential/Gear Oil Replacement is $122 with $27 for parts and $95 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
1993 Mercury Grand MarquisV8-4.6LService typeDifferential / Gear Oil - Front ReplacementEstimate$168.75Shop/Dealer Price$192.19 - $240.01
1998 Mercury Grand MarquisV8-4.6LService typeDifferential / Gear Oil - Front ReplacementEstimate$148.75Shop/Dealer Price$172.21 - $220.04
1984 Mercury Grand MarquisV8-5.8LService typeDifferential / Gear Oil - Rear ReplacementEstimate$148.75Shop/Dealer Price$172.21 - $220.04
2011 Mercury Grand MarquisV8-4.6LService typeDifferential / Gear Oil - Rear ReplacementEstimate$148.75Shop/Dealer Price$172.19 - $220.00
1978 Mercury Grand MarquisV8-5.8LService typeDifferential / Gear Oil - Rear ReplacementEstimate$148.75Shop/Dealer Price$172.22 - $220.07
2004 Mercury Grand MarquisV8-4.6LService typeDifferential / Gear Oil - Rear ReplacementEstimate$148.75Shop/Dealer Price$172.21 - $220.04
1989 Mercury Grand MarquisV8-5.0LService typeDifferential / Gear Oil - Rear ReplacementEstimate$153.75Shop/Dealer Price$177.07 - $224.80
2004 Mercury Grand MarquisV8-4.6LService typeDifferential / Gear Oil - Front ReplacementEstimate$153.75Shop/Dealer Price$177.44 - $225.46
Show example Mercury Grand Marquis Differential/Gear Oil Replacement prices

What is the Differential/Gear Oil all about?

Differential oil is a type of oil. Cars have a gearbox connecting the two axles. This gearbox is responsible for the conversion of engine power and its transmission to the wheels, allowing them to turn at varying speeds. This part of the car is called the differential, and lubrication is needed for it to function properly. Differential fluid, also called differential oil, provides the lubrication and cooling of the car’s differential. The fluid is there to protect the gears’ metal surfaces from friction, and to prevent overheating and burning.

Keep in mind:

  • Some vehicles have a front differential and others have a rear differential.
  • Some vehicles use a synthetic gear oil.

How it's done:

  • Check fluid level.
  • Inspect the rear housing for leaks.
  • Remove the cover (if the differential does not have a drain plug).
  • Install new gasket if needed.
  • Fill with new fluid.

Our recommendation:

Differential oil should be changed every 30,000 to 50,000 miles. You should aim to have the gear oil changed every 30,000 miles, but it’s a good idea to have a mechanic check the differential oil during regular maintenance services.

What common symptoms indicate you may need to replace the Differential/Gear Oil?

Gear oil is contaminated with metal particles or other substances.

How important is this service?

The differential is responsible for transferring the power from the engine to the transmission and the wheels, and for controlling how much power goes to each wheel. Like many aspects of your vehicle, the differential requires oil to act as lubrication. Differential oil allows the differential to move smoothly and consistently, which allows the vehicle to continue sending power to the wheels. If the differential oil is old, it may be contaminated with debris and metal shavings. This contamination will come into constant contact with the differential, which can cause severe long term damage to the differential.

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Meet some of our expert Mercury mechanics

Real customer reviews from Mercury owners like you.

Excellent Rating

(390)

Rating Summary
368
12
4
2
4
368
12
4
2
4

Richard

11 years of experience
450 reviews
Richard
11 years of experience
Mercury Grand Marquis V8-4.6L - Intake Manifold Gaskets - Washington, District of Columbia
Knowledgeable, explained the repairs in detail, honest analysis.

Verne

18 years of experience
20 reviews
Verne
18 years of experience
Mercury Grand Marquis V8-4.6L - Fuel is leaking from gas tank - Vallejo, California
Verne was extremely polite and knowledgable. He told me exactly what was wrong with the car so I could purchase the parts and have them installed on a later date. While he was here, he even fixed a problem I was having with the car that had absolutely nothing to do with the service. 10/10

Kyle

12 years of experience
39 reviews
Kyle
12 years of experience
Mercury Grand Marquis V8-4.6L - Valve Cover Gasket - Charlotte, North Carolina
On time. Professional. Knowledgeable. Explained everything well. Took pride in his work. Would DEFINITELY recommend Kyle!

Richard

21 years of experience
237 reviews
Richard
21 years of experience
Mercury Grand Marquis V8-4.6L - Starter - North Fort Myers, Florida
he was good.

Excellent Rating

(390)

Rating Summary
368
12
4
2
4
368
12
4
2
4
Number of Mercury Grand Marquis services completed
4290+
services done by our mechanics
TOTAL NUMBER OF EXPERT Mercury MECHANICS
600+
experts on our platform

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