Thanks for all the replies... I need to put a post-it on my dash to remind me about 6th gear lol... Computer always either says 21.9 or 22.1... I put 92 octane in... I'm assuming that's what everyone runs? No clue where I'd get 91 what the book says... Once I topped off from 3/4 tank and put 89 in... Figured 1/4 89 plus 3/4 92 = 91!