How often should the Honda CVT transmission fluid be changed?
2 Answers
Honda's CVT transmission requires the transmission fluid to be changed every 40,000 to 60,000 kilometers. It is recommended to have the fluid changed by professional technicians at an authorized 4S dealership. It is important to note that only the manufacturer-specified CVT transmission fluid should be used. Below are the relevant details about the fluid change: Introduction to the gravity drain method: This involves loosening the drain plug at the bottom, allowing the old fluid to drain out by gravity. However, due to the internal structure of the transmission, the old fluid often cannot be completely drained. This method has a relatively low fluid replacement rate but is economical and simple to perform. Many people use this method, and performing multiple changes can help remove more of the old fluid. Introduction to the flush method: This involves introducing new fluid into the transmission and then extracting the mixture of old and new fluid until the transmission fluid is no longer cloudy. This method requires more fluid, about twice as much as the manual gravity drain method, typically 9-12 liters of new fluid. Although the cost is higher, the fluid replacement is more thorough.
I've been driving a Honda Accord CVT version for five years. Based on my experience, the transmission fluid should be changed approximately every two to three years or every 30,000 to 50,000 kilometers. I remember the first change was at 40,000 kilometers when the fluid turned black and somewhat murky. The mechanic said changing it early helps protect the components from wear. With frequent starts and stops in city driving, the fluid wears out faster, so I get it checked every two years. If you often drive on highways, you might extend the interval slightly, but don't delay too long, or the transmission may overheat or develop louder noises. Always refer to the owner's manual for recommendations—simple and cost-effective maintenance can significantly extend your car's lifespan.