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

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Differential/Gear Oil Replacement Estimate for Mercury Monarch

Mercury Monarch Differential/Gear Oil Replacement costs $112 on average.

CarServiceEstimateShop/Dealer Price
1978 Mercury MonarchL6-4.1LService typeDifferential / Gear Oil - Rear ReplacementEstimate$138.75Shop/Dealer Price$165.79 - $216.30
1975 Mercury MonarchL6-3.3LService typeDifferential / Gear Oil - Rear ReplacementEstimate$138.75Shop/Dealer Price$163.97 - $213.13
1979 Mercury MonarchV8-5.0LService typeDifferential / Gear Oil - Front ReplacementEstimate$138.75Shop/Dealer Price$164.03 - $213.23
1977 Mercury MonarchL6-3.3LService typeDifferential / Gear Oil - Front ReplacementEstimate$143.75Shop/Dealer Price$168.31 - $216.97
1979 Mercury MonarchL6-4.1LService typeDifferential / Gear Oil - Front ReplacementEstimate$133.75Shop/Dealer Price$156.66 - $204.08
1980 Mercury MonarchL6-4.1LService typeDifferential / Gear Oil - Rear ReplacementEstimate$138.75Shop/Dealer Price$165.71 - $216.17
1980 Mercury MonarchV8-5.0LService typeDifferential / Gear Oil - Rear ReplacementEstimate$138.75Shop/Dealer Price$162.81 - $211.09
1977 Mercury MonarchV8-5.8LService typeDifferential / Gear Oil - Front ReplacementEstimate$133.75Shop/Dealer Price$156.55 - $203.89
Show example Mercury Monarch Differential/Gear Oil Replacement prices

Differential/Gear Oil Replacement Service

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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Matthew

33 years of experience
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Matthew
33 years of experience
Mercury Mariner - Differential / Gear Oil Replacement (Rear) - Hampton, Virginia
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19 years of experience
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Claude
19 years of experience
Mercury Marauder - Car is making a noise - Lithonia, Georgia
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Torrieanto
12 years of experience
Mercury Grand Marquis - Window is not going up or down - Tampa, Florida
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16 years of experience
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Mercury Mountaineer - Car is not starting - Henderson, Nevada
Very knowledgeable in my situation. I explained everything that was going on and at the end he was able to make sense of my engine problem. Good work!

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