Well, it's been a few days and a few more quarts - total of 6 now, 2 at a time, in my '02 Honda Accord V6. At first, it shifted kinda funny (the first two quarts). Then, within 50 miles or so, it seemed fine. Now, if anything, it's better. Crisp shifts, no "jerking", etc... Seems great. Also, I asked Valvoline and they recommend the MaxLife ATF for Honda's which spec ATF-Z1. Personally, I'm really happy with it. I should note that as of today I'm going to do a trani plug drain (3.1-3.2 qts) or through-the-dipstick method (2 qts. max) every other oil change. My OCI has been between 4000 and 5000 with Citgo 5W-20. This way, 6 oil changes = 30,000 miles which also means I've also put in 3x2=6 quarts or 3x3.1 = 9 quarts. That ought to keep it clean and it's no more fluid than doing it every 30K, and more new fluid is in the transmission more frequently.