What are the consequences of not changing transmission fluid?

[OJeffrey]

Hazards of prolonged non-replacement of transmission fluid: Causes damage to the transmission's shift control mechanism; Leads to abnormal wear of gears and clutch plates inside the transmission; Affects the normal operation of the transmission, resulting in damage to the transmission valve body. Different vehicle models have different replacement cycles. Below are the replacement intervals for transmission fluid: 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. The methods for changing transmission fluid are as follows: Loosen the drain plug at the bottom of the transmission to drain the old fluid before refilling. Remove the transmission oil pan directly for draining and refilling: This method is more thorough than the previous one, as it removes impurities accumulated at the bottom of the oil pan. Using a circulation machine to change automatic transmission fluid: Dynamic fluid exchange with an intelligent circulation machine can filter and clean out sludge and impurities inside the automatic transmission.