Quote:
Originally Posted by Paul Bennett
Know that '10% Ethanol' is actually 10% MINIMUM. Tests here in Oregon have found pump gas at close to 20%.
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The ratings are "up to" the percentage listed. E10 is not supposed to have more than 10% ethanol. E15 not more than 15% (more specifically between 10.5-15%). E85 not more than 85% (between 51-83%).
If you're finding higher percentages at your local pumps, then some place in the chain isn't blending or storing its fuels properly.