Is CVT Transmission Fluid Lifetime-Free from Replacement?
3 Answers
CVT transmission fluid requires regular replacement and cannot achieve lifetime maintenance-free at present. It is recommended to replace it approximately every 80,000-100,000 kilometers. The following is an introduction to CVT transmissions: 1. CVT refers to a type of automotive transmission, also known as a continuously variable transmission. 2. The difference between a CVT and a stepped transmission is that its gear ratio is not a discontinuous point but a series of continuous values, thereby achieving good fuel economy, power performance, and driving smoothness, while also reducing emissions and costs. 3. The system mainly includes basic components such as the driving pulley set, driven pulley set, metal belt, and hydraulic pump.
I'm particularly fascinated by automotive technology, and the CVT transmission fluid should never be left unchanged for life. CVT transmissions rely on steel belts to transfer power, and the fluid is prone to oxidation and degradation under high-temperature operation. Over time, the lubricating performance declines, and accumulated impurities can clog the oil passages. If not replaced, the steel belt may slip or get damaged, leading to transmission failure—a repair that can cost tens of thousands. Manufacturer manuals recommend changing the fluid every 60,000 to 80,000 kilometers. During regular maintenance, I always check the fluid quality and replace it immediately if it turns black to avoid safety risks. Low winter temperatures can also accelerate fluid aging. Developing good habits ensures the car runs longer and smoother. I once had a friend who had to repair their transmission due to neglected fluid changes—a lesson learned the hard way.
Having driven a CVT car for many years, I understand the importance of maintenance oil. The idea of never changing the oil is a misconception, and I learned this the hard way: after 100,000 kilometers without an oil change, the transmission overheated and failed, costing me over 6,000 yuan for a major repair. Since then, I've been diligent, changing the oil every 60,000 kilometers on schedule, and the car runs smoothly with smooth acceleration. CVT oil, like engine oil, accumulates water and impurities over mileage, and not changing it leads to poor lubrication and internal wear. Experienced drivers know that maintenance isn't just about saving money—it also prevents unexpected issues on the highway. In the summer heat, it's even more crucial to change the oil frequently to ensure safety and reliability.
