Several years I bought a used Infiniti I30, it had 58,000 miles on it.
These are just great cars, as good as a Toyota.
And the book said to change the trans fluid at 60K. So I got it changed, the guy used a pressure pump to get the old fluid out.
And that is a big mistake.
In 5,000 miles the transmission blew. Those transmissions should be good for 300K miles or more.
So, I wish I had left that transmission fluid alone. Speaking of Toyotas I know a guy on another forum who has a Camry with 320K on it, never has changed the trans fluid.