How Long Does an AT Transmission Last?

[LaXavier]

AT transmissions have a long lifespan, offering stable performance and robust durability, essentially lasting as long as the vehicle itself, typically over ten years. This is because AT transmissions can handle extremely high torque limits, making them suitable for many off-road vehicles and military applications, where they endure tough towing and challenging terrains without issue. However, they are prone to overheating and have less favorable fuel efficiency. Methods to extend transmission lifespan: 1. Replace transmission fluid according to the specified time or mileage: While many manufacturers claim transmissions are maintenance-free, the recommended fluid change interval is 60,000-80,000 km (varies by model). After the first service, it's advisable to change the fluid every 40,000-60,000 km to prevent degradation. 2. Avoid keeping the transmission in D (Drive) gear when stationary: Leaving the gear in D means the transmission is still working, with internal parts rubbing against each other and agitating the fluid, which raises the temperature. Over time, this can cause premature fluid degradation, reducing lubrication and cooling efficiency, thereby accelerating transmission wear.