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      02-09-2013, 09:06 PM   #4
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Drives: e91 328i, e90 328i, e90 335i
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Those off the shelf octane booster things are a scam. When they say "boosts octane 8 points" what the mean is 0.8 octane points. There is simply not enough liquid in that bottle to boost a full tank up a significant amount. All those things are is an industrial solvent such as toluene (115 octane I think). Go buy toluene from a paint store and use that instead.
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