Quote:
Originally Posted by JCL
Labelling regulations vary by jurisdiction. Even then, pump labels aren't necessarily accurate. Ethanol is added locally and can vary load to load. Only way to know the ethanol content is to check it.
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Around here, it is very common to see a sign on a pump that says "May contain up to 10% Ethanol by volumn." I'm not positive, but I think that disclaimer is on 100% of gas pumps in our area, regardless of brand. But I've never seen a sign indicating a particular percentage.