As stated, you'll get no benefit whatsoever unless it happens to be ethanol free. Running 94 is a waste, running race gas is even more pointless. Your car isn't tuned for it and has no idea what to with it to make it beneficial.
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Chad // 2001 BMW 740i M-Sport // 2000 BMW 540i Sport // 1997 BMW 328i Premium //
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Originally Posted by SlimKlim
You're a derbanana