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Bryan Wilkins (not verified)    September 6, 2019 - 3:59AM

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Is 10% or 15% Gasohol good or bad? Kwik trip and Kwik star stations in the midwest sell Top Tier pure gas, Top Tier 10% ethanol, and Top tier 15% ethanol. Which is best? I remember when Ethyl Anti-Knock was the in thing. Then lead free came and didn't hurt anything. Then again I remember when tire rotation included the spare tire.

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