What oil should be used for the front and rear differentials of a 2017 Patrol?

1 Answers
SanMarley
07/30/25 7:03am
Go to a 4S dealership to add specialized gear oil. The following are the reasons for differential bearing humming: 1. Differential oil: Differential oil has a service life. When it reaches a certain mileage, it must be replaced. Otherwise, the lubrication effect of the oil will sharply decline, causing abnormal noise in the differential. In this case, simply replacing the oil will suffice. 2. Differential gears: When the wear on the gears is severe, it becomes difficult for them to match with other internal components. Naturally, the differential will produce a humming sound during operation, and a new gear must be installed to resolve the issue. If the spacing between the gears is not properly adjusted, it can also cause abnormal noise in the differential, requiring readjustment.
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