by dpuckett » Thu Oct 22, 2009 1:48 pm
I would say since you are draining about half the fluid, refill with what you took out. Unless ATFs can mix and match.
I wouldnt put any additives in the tranny. Most additives (beyond fuel lube) are snake oils, or band-aids to bypass a real issue.
Dan
His- 93 W250 club cab LE, auto to Getrag conversion, piston lift pump, 3.54 LSD. 400k+
Hers- 04 QC 4x4. Built auto, Triple Dog, Air Dog. Funny Round truck that aint so quiet.