Originally Posted by Gentleman I just sat here and read all 9 pages of this thread. Twice. i now realize I need: a 10sec tune something called ACESIV more money for gas Seems like the RS6 likes a lil less mix w/ Aces than what's recommended on the bottle... I know mine does anyways. Not knocking the product at all, it is excellent. I especially like the lubricants. Have lab analysis for engine and trans oils.
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