Complete flush for ATF change?

[why?]

Originally Posted by lamadoo

At what km did you change yours or would recommend?

I had mine changed at about 55k miles, or about 88514km. Really though, keep it until it is obvious it is hurting gas mileage, my gas mileage dropped 5 mpg, for no reason. Changed the transmission fluid, it went back to normal.

Originally Posted by bronsin

Explain please.

Dirty transmission fluid will negatively effect gas mileage. Even doing the drain and fill by hand a little bit every year or so is better than leaving dirty transmission fluid in there.