What are the effects of not changing transmission fluid for ten years?

1 Answers
SadieLynn
07/29/25 3:46pm
Not changing the transmission fluid for ten years will cause the pH level of the transmission fluid to change, leading to corrosion of the transmission gears and thickening of the fluid. This prevents the fluid from lubricating the transmission gears effectively in a short time, causing the gears to overheat. Additionally, excessive wear of the clutch is also a result of not changing the transmission fluid for a long time. Hazards of not changing transmission fluid for a long time: Damage to the transmission's shift control mechanism; abnormal wear of gears and clutch plates inside the transmission; affects the normal operation of the transmission, leading to damage of the transmission valve body. Transmission fluid replacement intervals: Manual transmission: Manual transmission fluid is generally recommended to be replaced every three years or approximately 100,000 kilometers; automatic transmission: automatic transmission fluid is generally recommended to be replaced every two years or approximately 40,000 kilometers; continuously variable transmission (CVT): CVT fluid is generally recommended to be replaced every two years or approximately 60,000 kilometers. Methods for changing transmission fluid: Unscrew the drain plug at the bottom of the transmission to drain the old fluid before refilling; remove the transmission oil pan directly to drain and refill the fluid: this method is more thorough than the previous one, as it removes impurities from the bottom of the oil pan; use a circulation machine to replace automatic transmission fluid: dynamic fluid replacement with an intelligent circulation machine can filter and clean sludge and impurities inside the automatic transmission.
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