How many kilometers should the transmission fluid of a general automatic transmission car be replaced?
1 Answers
There is no unified standard for the replacement of transmission fluid. Generally, automatic transmission fluid should be replaced every 2 years or 40,000 kilometers, while manual transmission fluid is usually replaced every 40,000-60,000 kilometers. Transmission fluid is an oil product that keeps the gear system clean, ensuring the normal operation of the transmission and extending the life of the transmission device. The methods for replacing transmission fluid are as follows: 1. Gravity replacement. The principle is the same as changing engine oil. Loosen the bolt of the oil pan and let the transmission fluid flow out by gravity. This method is the simplest, but it cannot completely drain the transmission fluid, mainly because there are dead corners such as depressions and pits in the mechanical structure. 2. Circulation machine replacement. New transmission fluid is added to the circulation machine, which is connected to the oil circuit interface of the transmission. Under hydraulic pressure, the new fluid pushes out the old fluid. This method cleans the oil circuit more thoroughly. The more new transmission fluid used, the cleaner the cleaning. A single circulation machine replacement requires about 10-13 liters of transmission fluid. The replacement time is approximately 40-80 minutes. 3. Oil pan removal replacement. This method is a root cleaning method and can also clean the oil filter. Since the disassembly process requires excessive manpower, 4S shops generally do not do this.