Yeah, I agree that the true source hasn't been found yet. Ford put a new tranny in my car and it made ZERO difference. I put the cocktail in, and it made a huge difference, but once in a while i still can't get into gear, ANY gear. Running the engine with tranny in nuetral does nothing to help. Seems more like the shift gate really gets misaligned or something (but what do i know? if I did I'd get it fixed!).