2017 Chevy Impala Transmission fluid change.

[F150]

I have the same engine comb on my Cadillac XTS, there is a drain plug for the Transmission 3/8/", was able to drain a little over 5 qts out. I went back with Maxlife and everything is smooth. I have used the Amalie in the past on a Ford with good results.

 

[dubber09]

IMHO with the mileage on the car, just do D/F now and then in the spring, then every 30-50K km.