How to maintain the gearbox when using the car

1: Master the cycle of changing automatic transmission oil: The internal control mechanism of the automatic transmission is very precise and the matching clearance is small, so the oil change cycle of most automatic transmissions is generally two years or 40,000-60,000 kilometers. During normal use, the operating temperature of the transmission oil is generally around 120 degrees Celsius, so the quality requirements of the oil are very high and it must be kept clean. Secondly, after the transmission oil has been used for a long time, it will produce oil stains and may form sludge, which will increase the wear of each friction plate and each component, and also affect the system oil pressure, so that the power transmission is affected. Third, the sludge in the dirty oil will make the movement of the valve body in each valve body unsmooth, and the oil pressure control will be affected so that the automatic transmission will be abnormal.
2: Correctly replace the transmission oil: At present, the better oil change method is dynamic oil change, using special transmission cleaning equipment, fully circulating the old oil during the operation of the transmission, and then adding new transmission oil after draining it clean, so that the oil change rate is as high as 90 or more, ensuring a good oil change effect.
3: Is the automatic transmission oil level normal: The inspection method for automatic transmission oil is different from that for engine oil. The engine oil should be checked when the car is cold, while the transmission oil needs to be preheated to about 50°C. The shift lever should then stay in each gear for 2 seconds and then be placed in the parking gear. The normal oil level on the dipstick should be between the highest and lowest lines. If it is not enough, add oil of the same quality in time.