Differential oil is completely different from transfer case oil. Therefore, car owners can not mix and use them casually when maintaining the car. Differential oil is in the differential of the car, responsible for lubricating and protecting the gears of the differential, and dissipating heat for the gears in the differential. The transfer case oil is in the transfer case, not all cars have a transfer case, only some 4WDs have it. Both the transfer case oil and the differential oil need to be replaced regularly. If they are not replaced for a long time, the wear on the transfer case and differential will be very serious.
Is differential oil gear oil?
People in the industry will refer to the differential oil as differential gear oil, which can protect the differential gear. Therefore, the differential oil is gear oil. Differential gear oil is a lubricating oil for the lubrication of rear wheel differentials of rear-drive vehicles, which can effectively protect the differentials to a certain extent. If you do not pay attention to maintenance, after the performance of the differential gear oil declines, the friction force of the gears in the differential structure will increase, which will increase the fuel consumption of the vehicle, and will damage the differential and differential lock for a long time.
In order to prevent insufficient lubrication of the differential oil, it is generally necessary to replace the differential oil when the maintenance is performed at 60,000 kilometers or 40,000 kilometers. Of course, this is best to follow the arrangement of the 4S shop. After all, not all models have the same working conditions, especially for four-wheel drive, hard-line SUV models or high-performance and fast-speeding models. The lubricating effect of the gear oil must be higher, otherwise it is easy to cause damage to the differential due to insufficient lubrication.