How to Change Transmission Fluid?

[Henderson]

The method for changing transmission fluid is as follows: 1. Loosen the drain screw at the bottom of the transmission to drain the fluid and then refill: When the engine is turned off and the automatic transmission stops working, the oil pump becomes inactive, halting the circulation of automatic transmission fluid. Consequently, the fluid flowing in the valve body, pistons, torque converter, radiator, and cooling lines also stops abruptly, preventing it from flowing back into the oil pan. 2. Remove the transmission oil pan directly to drain and refill the fluid: This method is more thorough than the previous one, as it removes impurities from the bottom of the oil pan. 3. Use a circulation machine to change the automatic transmission fluid: A smart circulation machine can perform dynamic fluid changes, filtering and cleaning sludge and impurities inside the automatic transmission. It ensures an equal exchange of fluid, completely replacing the old fluid in the transmission, thoroughly cleaning the internal circulation, and providing the transmission with a good internal working environment, thereby extending its lifespan.