How Often Should Transmission Fluid Be Replaced?
2 Answers
Automatic transmission fluid is generally recommended to be replaced every 40,000 kilometers or so. Precautions for replacing transmission fluid: 1. Due to the complexity inside the transmission, a circulation machine should be used for fluid replacement to ensure impurities are removed along with the old fluid. 2. When selecting transmission fluid, strictly adhere to the manufacturer's requirements. Avoid using non-original transmission fluid and never opt for counterfeit or substandard products to save money. 3. Even if different car models share the same transmission brand, it is still advisable to replace the fluid at a 4S dealership. Although the transmission brand may be the same, the craftsmanship, materials, and tuning can vary depending on the brand and model. Do not risk major losses for minor savings. Remember, while transmission fluid may be expensive, repairing a transmission is far more costly.
The timing for transmission fluid replacement varies by vehicle, but based on years of driving experience, I recommend consulting the owner's manual. Manual transmissions typically require a change every 30,000 to 60,000 kilometers, while automatic transmissions may need it between 50,000 to 100,000 kilometers. Driving habits are crucial: if you frequently start-stop in city traffic or often haul heavy loads, you should change it earlier, such as every two years. My old Toyota now mostly runs on highways, so I change the fluid every four years, and it's been running smoothly. Remember, don't wait for problems to arise—regular maintenance makes the transmission more durable, avoiding breakdowns or costly repairs. Long-term neglect of fluid changes allows debris buildup, leading to gear wear and eventual transmission failure.
