However, he clarifies that he doesn’t mean that this will extend the life of the car. Folks can just leave oil in their car ...

Should I change the transmission fluid now or at 60,000 miles? A: Toyota considers the transmission fluid a lifetime fill. This is unless you tow a trailer, use a car-top carrier or carry heavy loads.

However, how often you need to change it depends on your specific ... In general, automatic transmission vehicles should have the fluid drained every 60,000 to 100,000 miles.