How often should the transmission fluid in a CVT transmission be changed?

[VanLucas]

CVT transmission fluid should be changed every two years or every 40,000 kilometers driven. A CVT transmission is a type of automotive transmission, also known as a continuously variable transmission. Its working principle is: in a CVT drive system, traditional gears are replaced by a pair of pulleys and a steel belt. Each pulley consists of a V-shaped structure formed by two conical discs. The engine shaft connects to the small pulley, which drives the large pulley via the steel belt. The maintenance methods for a CVT transmission are: 1. Check the quality and quantity of the CVT fluid at intervals specified by the manufacturer; 2. Regularly replace the fluid with products that meet the manufacturer's specifications; 3. Have the CVT transmission serviced at a professional repair facility.

[McJosie]

I've been driving a CVT car for several years, and it's generally recommended to change the transmission fluid every 40,000 to 60,000 kilometers, depending on driving habits. If you frequently drive on highways or often get stuck in traffic, the wear is faster, so change it earlier. Last time, I changed the oil at 50,000 kilometers, and I could clearly feel smoother gear shifts. Don't delay it for too long; old oil can become viscous, affecting transmission performance, and in severe cases, it may cause slipping or failure, which can be expensive to repair. It's best to refer to your vehicle's manual, as some manufacturers may have slightly different recommendations. Regular maintenance is key to protecting your beloved car, extending its lifespan, and avoiding major repairs.

[LeAlessandra]

From a professional perspective, the replacement interval for CVT transmission fluid generally falls between 40,000 to 80,000 kilometers, with driving habits playing a significant role. Frequent short-distance city driving accelerates fluid degradation, necessitating more frequent changes, while smooth long-distance driving allows for extended intervals. Always use the correct fluid specification during changes—never substitute with regular oil as it may damage the hydraulic system. As a mechanic, I routinely advise owners to check fluid color and odor: clear red indicates normal condition, whereas dark coloration or a burnt smell warrants immediate action. Regular maintenance prevents CVT overheating issues, ensuring fuel efficiency and worry-free driving.

[Maci]

As for the oil change frequency, in most cases, it's sufficient to change it every 50,000 kilometers or 5 years, but it depends on the vehicle's condition. Novice car owners don't need to worry; a simple self-check involves opening the hood and checking the transmission dipstick—if the oil level is low or the oil appears cloudy, it's time for a change. A money-saving tip is to choose genuine oil and avoid cheap, inferior products. Changing the oil on time protects the transmission, preventing abnormal noises or gear shifting issues, ensuring a smoother drive and extending its lifespan.