How Many Kilometers Should Transmission Fluid Be Changed?
2 Answers
Automobile transmissions mainly include manual MT transmissions, automatic AT transmissions, CVT continuously variable transmissions, and DSG transmissions. Below are the replacement intervals for each type of transmission fluid: 1. Manual MT transmission fluid is the cheapest to replace and has a relatively long replacement interval, generally usable for about 80,000 kilometers, with most models requiring approximately 3 liters. 2. AT automatic transmission fluid is typically changed every 40,000 kilometers, with the total fluid capacity being 6-8 liters. However, due to structural reasons, it usually cannot be completely replaced in one go. 3. CVT fluid is generally replaced based on the deterioration level indicated by the computer system, but it is recommended to replace CVT fluid preferably between 60,000 to 80,000 kilometers.
How often to change transmission fluid is actually quite variable in terms of mileage. I remember driving for over a decade - manual transmissions usually only need a change every 50,000 to 80,000 km, and even less frequently if driving conditions are good. But automatics may require changes every 30,000 to 60,000 km, as my friend's car had deteriorated fluid at 60,000 km causing rough shifting, and an immediate change saved major repair costs. Your driving habits also matter - frequent city traffic with high fluid temperatures accelerates aging, so early checks are wise; mostly highway driving with lower temperatures allows longer intervals. Don't just go by mileage - time matters too, typically every 2-3 years is reasonable. The manual is the most accurate reference, but I recommend checking the fluid color every six months - when it turns dark or black, it's time to act. Delaying changes wears internal parts and can lead to transmission failure with repair costs over 10,000, which isn't cost-effective. Regular fluid changes maintain your car's health, extend its lifespan, and provide peace of mind on long trips.
