How Often Should Automatic Transmission Fluid Be Changed?
2 Answers
The replacement interval for transmission fluid varies depending on driving conditions. Generally, an automatic transmission vehicle under normal use requires a fluid change approximately every 50,000 kilometers. If the vehicle is frequently used and operates in harsh environments, the fluid should be changed every two years or so. For every 15,000 kilometers driven, the automatic transmission should be inspected and maintained. Check for any leaks, the level of the fluid, and the quality of the fluid. Any leaks must be repaired promptly. If the fluid level is low, it must be topped up with the same type of transmission fluid, being careful not to overfill, as excessive fluid can also cause significant damage to the transmission. According to the vehicle manufacturer's guidelines, the transmission fluid should be changed every two years or every 60,000 kilometers. If the vehicle has been used for over two years but has only been driven 20,000 kilometers, or if the vehicle has been used for less than a year but has already reached 60,000 kilometers, the transmission fluid should be changed in both cases. When changing the fluid, the filter inside the transmission pan should also be replaced, and only specialized transmission fluid should be used.
The frequency of automatic transmission fluid changes mainly depends on your car's manual. I've been driving for almost twenty years, and manuals usually recommend changing it every 3 to 5 years or every 30,000 to 60,000 kilometers. However, this isn't a strict rule. If you frequently encounter city traffic jams or drive long distances on highways like I do, the fluid temperature can rise, accelerating aging. In such cases, you should shorten the interval to about two years or 20,000 kilometers. Don't underestimate this; deteriorated fluid can cause rough shifting and wear out transmission components, leading to repairs costing thousands or even tens of thousands of yuan. It's best to have a professional check the fluid's color—if it turns black or has a burnt smell, it's time for a change. Regular maintenance not only saves hassle but also extends your car's lifespan.
