What's with the oil leakage in the gearbox? How to change the transmission oil?

Gearbox is one of the three major parts of a car. It can not only change the driving direction of the car, but also output different gears to change the speed of the car. Gearboxes are mainly divided into manual and automatic, and gearbox oil is also needed for normal work. So what is the situation of oil leakage in the gearbox? How to change the oil?

What's with the oil leakage in gearbox 1? Check which part is missing. If there is a slight oil leakage, the vehicle will run normally, but pay more attention to the oil leakage, because some oil leaks are discontinuous.

2. However, if there is continuous oil leakage and it is getting worse, you should go to the repair company for inspection and maintenance as soon as possible. (Otherwise, insufficient oil pressure in the gearbox will cause the clutch friction plate to burn out. )

3. Under the condition that the oil leakage is not serious, just clean up the appearance of the oil leakage of the gearbox, then apply sealant, and check that there is no oil leakage after the glue is dried; If the situation is serious, it is necessary to remove the transmission oil pan and replace the seal inside.

How to change the oil in the gearbox and the maintenance of the gearbox are generally determined according to the time and mileage. It should be maintained every two years or 40 thousand kilometers. During maintenance, the transmission oil, filter element and cooling system should be replaced. It is recommended to use a circulating machine to exchange oil in equal amount, so that the oil change is more thorough.

The cooling system is recommended to be cleaned every spring and summer, and the ideal oil temperature is between 80-90 degrees. Oil temperature is an important factor affecting the life of gearbox. 90% gearbox damage is caused by improper gearbox maintenance and high oil temperature.

In AT gearbox, gear shifting and power transmission are completed by gearbox oil, so gearbox oil shoulders the heavy responsibilities of lubrication, hydraulic transmission and cooling. Try to choose the original special oil for oil change, then choose the gearbox oil produced by the big factory, and try not to use the gearbox oil of unknown brands.

Secondly, when changing the transmission oil, replace the transmission filter and gasket. When the gearbox works, the parts contact at high speed, resulting in friction and wear. The function of the filter is to isolate the iron filings produced by wear and prevent them from entering the oil circuit.

Finally, talk about how to change the transmission oil. If it is AT gearbox oil, it is best to replace it with a circulating machine, so that the old oil stored in the hydraulic torque converter can be completely replaced and the gearbox can work under the best lubrication conditions.

How far does the transmission oil run? Manual transmission generally changes transmission oil every 4-6w km. When the suspension is difficult and the suction is poor, it must be checked and replaced in time.

Automatic transmission for transmission oil is generally 6w km. If it is a national highway commute, the vehicle environment is good, the replacement cycle can be extended appropriately, and the traffic jam environment often stops and the acceleration is obvious, so it is necessary to consider replacing it in advance. Please note that lifeless maintenance of some transmissions does not mean lifeless transmission oil.