Originally posted by AccordSleeper
i've heard that flushing can move around some of the metal filings in the tranny and can actually mess shit up.
exactly ... there's all sorts of metalic shavings and grit in the tranny that settled towards the bottom of the pan. when you get your tranny completely flushed, some of crap gets washed back into the transmission. the suggested way to do a complete fluid change is to drain 3 quarts, fill 3 quarts, and do it again in 100 miles.