Bian Xiao sorted out the related contents of "Differential Oil Shortage Symptoms" that people often pay attention to, as shown below. When the differential of a car is short of oil, the rear axle of the car will hum. Moreover, when the car is off-road, it may happen that four wheels keep the same speed. When the differential is short of oil, it must be added to the garage or 4s shop in time to prevent it from affecting the normal use of the car.

Generally speaking, the differential is only installed on four-wheel drive vehicles. By making the wheels rotate at different speeds, the off-road ability of the car is improved and the handling of the car is enhanced. According to the different principles and forms of differential, differential can be divided into gear differential, central differential, anti-skid differential, LSD differential and tolson differential.

When the differential fails, abnormal noise will appear on the rear axle of the car, which will affect the normal use of the car.

There are many reasons for the failure of differential, except the lack of differential oil, including the wear of differential gear and improper gear adjustment.

If the gear is worn, it can't work with other parts, and the friction between parts will cause differential abnormal sound. In this case, the differential gear should be replaced again. If the gear spacing is not adjusted properly, it will also produce abnormal noise and need to be adjusted again.

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