I thought 6th gen autos were completely different from 5th gens...especially since the 6th gens have a rocky track record for tranny failure. I change AT fluid in my 1996 Accord every 35k miles (drain and refill, no flushes) and no problems so far in 100k+ miles. 5th gens tend to shift a bit rough, but it's completely normal. If the transmission are the same, did they just use better stuff in the 5th gens?