Is It Okay to Not Change Transmission Fluid for 8 Years?
2 Answers
Not changing transmission fluid for 8 years is not advisable. Transmission fluid primarily serves to lubricate, clean, and seal the transmission system. Over time, the quality of the fluid deteriorates, and impurities may form. Here is some information about transmission fluid: Function of Transmission Fluid: It is a lubricant that keeps the gear system clean, extends the lifespan of transmission components, provides effective lubrication even in low temperatures, and reduces fluid loss under harsh operating conditions. Characteristics of Transmission Fluid: Most transmission fluids are compatible with automatic transmissions currently on the market. However, each automatic transmission design has unique technical requirements. Even the same model of transmission, when installed in different vehicles, may vary in torque, weight, speed, and structure. Therefore, manufacturers specify their own dedicated transmission fluids.
Going eight years without changing the transmission fluid is definitely not ideal. I suspect it has already deteriorated, with the additives in the oil losing their effectiveness, failing to properly lubricate the gears and friction plates. This causes severe internal friction and overheating in the transmission, and the valve body can easily get clogged with metal debris. You might have noticed symptoms like jerky shifting, delays, or slippage while driving, right? If you keep delaying the fluid change, you could face gearset damage or solenoid failures. Once the transmission completely fails, repairs could cost at least 5,000 to 6,000 RMB, and in severe cases, you might need a whole new transmission, setting you back tens of thousands. Older cars are especially prone to these issues. I strongly recommend taking your car to a professional shop for a fluid change ASAP and having them check the transmission’s overall health. Don’t let small savings lead to a major financial setback.
