How often should the car transmission fluid be replaced?

[McJuniper]

Car transmission fluid is generally replaced every 60,000 to 80,000 kilometers. The reasons for replacing transmission fluid are: 1. The transmission requires gear oil for lubrication, cooling, cleaning, and anti-corrosion; 2. To reduce gear wear; 3. To keep the shifting system clean; 4. To extend the lifespan of the transmission device; 5. To prevent the transmission fluid viscosity from thinning and the lubrication performance from declining. The steps for replacing transmission fluid are: 1. Remove the drain plug at the bottom of the transmission to drain the old fluid; 2. Remove the inner and outer shells of the transmission; 3. Remove the transmission fluid filter; 4. Remove the oil pan gasket and clean the surrounding stains; 5. Use cotton threads to wipe the cleaned transmission fluid filter device; 6. Add the new fluid after installation is complete.