Is it necessary to change manual transmission fluid?

2 Answers
VanMaggie
07/30/25 12:33am
It is necessary to change manual transmission fluid, and the replacement method is as follows: 1. Use a screwdriver to remove the transmission housing; 2. Remove the transmission fluid filter; 3. Take off the oil pan gasket and wipe the transmission fluid filter device with cotton yarn; 4. Install the oil pan, oil pan gasket, and housing; 5. Fill with transmission fluid. Precautions for changing transmission fluid: 1. Choose the corresponding viscosity when changing the fluid to avoid power loss; 2. Do not mix different oils to prevent the performance of different oils from affecting the car; 3. Do not use inferior transmission fluid; 4. Be careful not to introduce impurities when changing the transmission fluid.
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MacBrody
08/15/25 5:21am
Manual transmission fluid really needs to be changed. I have a manual transmission car that I've driven for over eight years, and initially, I neglected to change the fluid. Later on, shifting started feeling rough and accompanied by squeaking noises. I took it to a repair shop, and the mechanic said the fluid was as black as ink and had lost its effectiveness. After replacing it with new fluid, the shifting became much smoother immediately. Transmission fluid lubricates the gears, and over time, it degrades and accumulates impurities, leading to increased wear on components. At best, this causes noisy and difficult shifting; at worst, it can damage the gears and render the entire transmission useless, potentially costing thousands to repair. It's recommended to follow the maintenance manual—most cars require a change every 60,000 to 100,000 kilometers. Don't underestimate this small maintenance task; it determines whether your car stays healthy and lasts long. Don't wait until problems arise like I did. Regular maintenance saves both hassle and money.
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