
For automatic transmission fluid in vehicles, it is generally recommended to replace it every 40,000 kilometers or so. Here is some information about automatic transmissions: 1. Vehicle owners can determine whether to change the transmission fluid based on the operating condition of the transmission. If gear shifting is smooth and there is no significant change in transmission noise, replacement may not be necessary. However, if gear shifting becomes rough, especially when the vehicle speed exceeds 100 km/h and the transmission noise increases noticeably, it may be time to consider changing the transmission fluid. 2. The automatic transmission is a crucial component of the vehicle's drivetrain and one of the most precise parts. Over time, the viscosity of the transmission fluid will thin, leading to reduced lubrication and sealing performance, increased resistance and wear, unstable pressure, and compromised precision in the hydraulic system. This can result in decreased transmission control accuracy, poorer shift precision, and reduced smoothness and responsiveness.

Last time I went for maintenance, I specifically asked the technician about the machine transmission fluid change process, which is actually quite particular. Automatic transmission cars usually take about half an hour to an hour, while manual transmissions can be done faster. However, it depends on the condition of the circulation machine - newer workshop equipment is more efficient. The technician recommended changing it every 60,000-80,000 kilometers, especially for drivers who frequently floor the accelerator. For vehicles over ten years old or those often driven on mountain roads or dirt paths, it's better to have it checked at 50,000 kilometers. Remember to use the manufacturer-specified fluid - don't try to save a few bucks with off-brand products, as transmission repairs cost much more than fluid changes. Temperature also affects the process - in winter, it takes about ten extra minutes to preheat the fluid.

As a seasoned road-tripper, I've changed my transmission fluid three times. The service usually takes 40 minutes at the repair shop, but you should budget a full hour for the inspection. The flushing machine displays pressure parameters to ensure complete removal of old fluid. My American SUV required 12 liters, while Japanese vehicles typically need just 8 liters. Never skimp on this maintenance - last time I met an owner who delayed until 150,000 km without changing, and the transmission started slipping before complete failure. Seasons matter too - summer changes are about 10 minutes faster. After replacement, always have the mechanic test drive to check for any gearshift hesitation.

I accompanied my friend to a chain auto repair shop for a transmission fluid change. It took 52 minutes for the automatic transmission car, and the mechanic mentioned that German cars take even longer. Machine-assisted fluid replacement is far more thorough than manual methods, flushing out over 90% of old fluid residues. Oil capacity varies significantly across models: CVT transmissions require 10-12 liters, while dual-clutch transmissions need about 8 liters. Technicians will simultaneously inspect the oil pan filter screen—this step should never be skipped. Recommended replacement interval is 60,000 km, or 50,000 km for frequent stop-and-go traffic. Monitor fluid color—darkening indicates degradation. Always keep receipts as warranty proof.


