How often should the ZF 8AT transmission fluid be changed?

[DaisyRose]

Under normal driving conditions, the transmission gear oil should generally be replaced every 2 years or 60,000 kilometers. During regular operation, the transmission fluid temperature typically remains below 135°C. However, if the vehicle is subjected to excessive use—such as towing heavy loads, driving in four-wheel-drive mode set for snow or off-road conditions, or operating with excessive torque converter slippage—the transmission fluid temperature may reach 135°C. Below is relevant information about transmissions: 1. Definition: A transmission can alter the gear ratio between the output shaft and input shaft by engaging or disengaging gears. Also known as a gearbox, it is a mechanism designed to modify the speed and torque delivered from the engine. 2. Function: It changes the gear ratio to expand the torque and speed range of the driving wheels, adapting to varying driving conditions. Additionally, it enables the engine to operate at higher power with lower fuel consumption.