How often should Toyota CVT transmission fluid be changed?
2 Answers
CVT transmission fluid has a slightly longer replacement interval compared to other automatic transmissions, generally every 2-3 years or approximately 60,000-80,000 kilometers. Here are the potential risks of not changing Toyota CVT transmission fluid for a long time: 1. Transmission fluid working under high-speed and high-temperature conditions for extended periods can deteriorate and evaporate, thereby accelerating the wear of mechanical components and, in severe cases, damaging internal transmission parts. 2. If the transmission fluid is not changed for a long time, the car may experience weak starts when cold. During driving, slight slipping phenomena may occur. 3. Long-term failure to change the transmission fluid can cause the fluid to thicken, potentially obstructing the transmission cooler, leading to excessively high transmission fluid temperatures and increased wear. Additional information: There are generally two methods for changing transmission fluid: gravity drain and machine flush.
According to Toyota's official manual, the recommended replacement interval for CVT transmission fluid is typically between 40,000 to 60,000 kilometers or approximately every two years. However, the actual interval depends on your driving habits. If you frequently encounter stop-and-go traffic, make frequent starts/stops, or drive long highway distances, the fluid deteriorates faster, making an early change at 40,000 km more advisable. A friend of mine delayed changing until 80,000 km, resulting in transmission slippage and a 6,000+ RMB repair bill. During routine maintenance, check the fluid color—if it appears dark or murky, it's time for a replacement. Always use the manufacturer-specified CVT fluid, as incorrect viscosity can affect valve body operation. For optimal results, have the fluid changed at a 4S dealership or professional repair shop equipped with proper tools.
