How often should transmission fluid be changed and how many liters are needed?
2 Answers
Transmission fluid should be changed every 2 to 3 years or 40,000 to 60,000 kilometers, requiring 5 to 6 liters. The functions of transmission fluid are: 1. Keeping the shifting system clean; 2. Lubricating the transmission components. Signs that transmission fluid needs to be changed include: 1. Vehicle shaking and rough gear shifting; 2. Transmission overheating warning on the dashboard; 3. Engine stalling; 4. Unusual noises. The functions of an automotive transmission are: 1. Changing the gear ratio; 2. Expanding the torque and speed of the driving wheels; 3. Allowing the vehicle to move in reverse; 4. Facilitating gear shifting or power output. Methods for maintaining an automotive transmission include: 1. Regularly checking the fluid level; 2. Avoiding skipping gears when upshifting; 3. Not forcing the transmission into neutral; 4. Not shortening the warm-up idling time; 5. Avoiding gear grinding when shifting.
I've been driving for over twenty years, and the transmission fluid replacement interval is crucial. Manual transmissions generally need a change every 70,000 to 100,000 kilometers, while automatics require more frequent attention, around 40,000 to 60,000 kilometers. On average, you'll need 4 to 6 liters, but it depends on the specific model—my last car took 7 liters to fill properly. The replacement timing is also affected by driving habits; if you frequently encounter city traffic congestion or often drive under heavy load conditions, it's better to shorten the interval. Once, I delayed the change until 100,000 kilometers, and the transmission started whining with rough shifting—it cost me over 3,000 yuan in unnecessary repairs, which I deeply regret. Regular maintenance can extend transmission life and improve driving smoothness. I recommend checking the owner's manual and not blindly trying to save money or effort.
