Reasons for Changing the Automatic Transmission Fluid in the Alivio
2 Answers
Reasons for changing the automatic transmission fluid in the Alivio include the following hazards if the fluid is not replaced: 1. Damage to the transmission's shift control mechanism; 2. Abnormal wear of gears and clutch plates inside the transmission; 3. Impact on the normal operation of the transmission, leading to damage to the transmission valve body. Transmission fluid is different from engine oil. Although both fluids serve a lubricating function, their roles are distinct and should not be confused. Difference: Engine oil is the lubricant for the engine system, possessing properties such as oxidation resistance, anti-wear, and corrosion prevention. Transmission fluid, on the other hand, is primarily used to keep the gear system clean and extend the service life of internal transmission components. Due to the different structures and operating environments of the transmission and the engine, transmission fluid cannot be used as engine oil, nor can engine oil be used as transmission fluid.
As a driver who frequently takes long-distance trips, I pay special attention to transmission maintenance. Automatic transmission fluid is like blood—it oxidizes and deteriorates over prolonged operation. When the fluid ages, its lubricating properties diminish, increasing wear on the gear sets, and metal debris can easily clog the precision valve body. Last year, my friend's Ciaz required a major repair costing over 6,000 yuan because the valve got stuck after 80,000 kilometers without a fluid change. I recommend replacing the fluid every 60,000 kilometers or four years, especially for vehicles often driven on mountainous roads, as the fluid degrades faster under high-temperature conditions. When changing the fluid, have the mechanic check the oil pan filter screen—this small component can also affect shifting smoothness if it gets dirty.
