I used the same ATF last year total 16 quarts via transcooler method drained 3quarts added 3 quarts and shifted thru all the gears...4K miles
up to date and all is well....I didn't read your entire thread...was your tranny shifting properly before you did the ATF change?
I had these shifting issues before the fluid change. Just not as often. Good to know this fluid will work since I still have a lot left. Thanks for your feedback.