Should Transmission Fluid Be Replaced?

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Transmission fluid needs to be replaced periodically. More information about transmission fluid is as follows: 1. The main function of transmission fluid is to keep the shifting system clean, as well as lubricate and prolong the lifespan of the transmission components. 2. The replacement interval for transmission fluid is longer compared to other fluids, and some vehicle models feature maintenance-free transmission fluid. 3. Generally, the automatic transmission fluid (ATF) in vehicles should be replaced every two years or every 40,000 kilometers, but this varies depending on the vehicle model, as different models have different requirements.