What to know about the Differential/Gear Oil:
Differential oil is a kind 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, enabling them to turn at different speeds. This part of the car is known as the differential, and lubrication is required for it to function well. Differential fluid, also known as 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.
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Facts to Note:
Some vehicles have a front differential and others have a rear differential.
Some vehicles use synthetic gear oil.
How to Fix:
Inspect fluid level.
Check the rear housing for leaks.
Take away the cover (if the differential does not have a drain plug).
Fix new gasket if required.
Fill with new fluid.
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 best practice to have a mechanic check the differential oil during normal maintenance services.
Common symptoms indicating you may need to change the Differential/Gear Oil:
Gear oil is contaminated with metal particles or other substances.
Importance of this service:
The differential is in charge 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 needs oil to act as lubrication. Differential oil enables 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 hazard to the differential.