So this comes down to the idiots that say "Oh, 98 octane makes no difference over 95 octane"... So, the reason why V6s benefit from it, is because the timing's changed to compensate for the better fuel... So, in saying that, the people who don't notice any difference, or people who SAY it doesn't make a difference either don't have an ECM that can't adjust accordingly or possibly a smaller engine that may not benefit from higher octane fuel in the first place?