How often is the best time to change the transmission oil?How often should I change the transmission oil in my car?

Generally speaking, the transmission oil of a manual transmission car can be replaced after about 100,000 kilometers or about 3 years of driving. For automatic transmission cars, the transmission oil can be replaced after driving for about 2 years or about 400 million kilometers.

If the shift of the car is relatively smooth while driving, and the noise change of the transmission is relatively small, in this case, the transmission oil can not be changed. When the shift of the car is not smooth and the noise of the gearbox increases, it is necessary to consider changing the gearbox oil. Also, when changing the transmission oil, be sure to check the amount of transmission oil, the amount of oil should not be too much or too little, otherwise it will cause some problems in the vehicle.

When the oil is too low, there may be loud noise or slow shifting, and the long-term lack of oil will cause the transmission to heat up and hinder normal driving. If the amount of oil is too high, foaming will occur, affecting its lubricating properties.

When changing the transmission oil of the car, it is not as easy to operate as changing the oil, so it is best to go to the 4S shop to change the transmission oil, and let professional personnel use professional tools to prevent accidents. Don't cause big damage to the transmission because of cheapness. You must know that although it is a little expensive to replace the transmission oil, it will be more expensive to repair the transmission.