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

Our mobile mechanics offer services 7 days a week. Upfront and transparent pricing.

Estimate price near me

Service Location

Customer Ratings

(1,380)

Included for free with this service

Online Booking

Mechanic comes to you

12-month / 12k-mile warranty

Free 50 point safety inspection

Our certified mobile mechanics can come to your home or office 7 days a week between 7 AM and 9 PM.

Customer Ratings

(1,380)

Differential/Gear Oil Replacement Service

How much does a Differential/Gear Oil Replacement cost?

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

CarServiceEstimateShop/Dealer Price
1983 Mercury ZephyrL4-2.3LService typeDifferential / Gear Oil - Front ReplacementEstimate$168.75Shop/Dealer Price$192.19 - $240.01
1982 Mercury ZephyrV8-4.2LService typeDifferential / Gear Oil - Front ReplacementEstimate$148.75Shop/Dealer Price$172.21 - $220.04
1979 Mercury ZephyrL6-3.3LService typeDifferential / Gear Oil - Rear ReplacementEstimate$148.75Shop/Dealer Price$172.21 - $220.04
1979 Mercury ZephyrL4-2.3LService typeDifferential / Gear Oil - Front ReplacementEstimate$148.75Shop/Dealer Price$172.19 - $220.00
1978 Mercury ZephyrL4-2.3LService typeDifferential / Gear Oil - Rear ReplacementEstimate$148.75Shop/Dealer Price$172.22 - $220.07
1981 Mercury ZephyrL6-3.3LService typeDifferential / Gear Oil - Rear ReplacementEstimate$148.75Shop/Dealer Price$172.21 - $220.04
1980 Mercury ZephyrL6-3.3LService typeDifferential / Gear Oil - Rear ReplacementEstimate$153.75Shop/Dealer Price$177.07 - $224.80
1982 Mercury ZephyrL4-2.3LService typeDifferential / Gear Oil - Rear ReplacementEstimate$153.75Shop/Dealer Price$177.44 - $225.46
Show example Mercury Zephyr 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.

Fast and easy service at your home or office

Backed by 12-month, 12.000-mile guarantee


Meet some of our expert Mercury mechanics

Real customer reviews from Mercury owners like you.

Excellent Rating

(1,380)

Rating Summary
1,295
49
9
6
21
1,295
49
9
6
21

Brandon

18 years of experience
275 reviews
Brandon
18 years of experience
Mercury Zephyr L6-3.3L - Car shuts off when stepping on gas pedal - Dacula, Georgia
Good guy, knowledgeable and personable

Matthew

33 years of experience
1210 reviews
Matthew
33 years of experience
Mercury Mariner L4-2.3L Hybrid - Differential / Gear Oil Replacement (Rear) - Hampton, Virginia
Excellent service.

Cary

27 years of experience
92 reviews
Cary
27 years of experience
Mercury Sable V6-3.5L - Radiator Flush - Raleigh, North Carolina
Called Cary to flush radiator and refill. While he was doing this he found a cracked serpentine belt which he replaced saving me significant money over someone having to come back later.

Chris

22 years of experience
2223 reviews
Chris
22 years of experience
Mercury Grand Marquis V8-4.6L - Car is not starting - Fullerton, California
great job there , on time , knows his job , very professional I recommend him for any future work that I or my friends might need even in the rain

Excellent Rating

(1,380)

Rating Summary
1,295
49
9
6
21
1,295
49
9
6
21
Number of Mercury services completed
15180+
services done by our mechanics
TOTAL NUMBER OF EXPERT Mercury MECHANICS
600+
experts on our platform

Recent articles & questions

2012 Honda Pilot vs. 2012 Acura RDX: Which One Should I Buy?
Sport utility vehicles are fun in the sun, sand, dirt, mud, and even in the carpool line at school. Whether you’re hauling around your family or your family of pets, these SUVs are sure to make even a drive around...
P0316 OBD-II Trouble Code: Misfire Detected on Startup (First 1000 Revolutions)
P0316 means the engine is misfiring due to damaged or defective ignition system components or engine vacuum leaks.
P0764 OBD-II Trouble Code: Shift Solenoid C Intermittent
P0764 means a faulty shift solenoid and irregular voltage readings; caused by a failed shift solenoid, internal ATF blockages

Car won't change gears

Hello. If the clutch pedal is hard to push, it sounds like there is something binding in the mechanical portion of clutch system. The binding could be the pressure plate, the throwout bearing or its guide, or the clutch fork....

Will a bad O2 sensor damage my car's computer?

The engine control unit (ECU) is a possible cause of the O2 sensor (https://www.yourmechanic.com/services/oxygen-sensor-replacement) fault codes but not the most likely. Your vehicle is equipped with 4 O2 sensors. Bank 1 is the driver's side. Bank 2 is the passenger...

Exhaust was cut off and I need to repair it. What do I need?

As long as the vehicle has a catalytic converter and muffler, you can put what ever pipe you want on the vehicle as long as the pipe is not near any fuel tanks, electrical wiring, and any brake lines. It...

How can we help?

Our service team is available 7 days a week, Monday - Friday from 6 AM to 5 PM PST, Saturday - Sunday 7 AM - 4 PM PST.

1 (855) 347-2779 · hi@yourmechanic.com