In Nebraska (where we have a lot of ethanol) every pump has regular (no ethanol: 87), 10% blend (89) and premium (no ethanol: 91 or 92%). then some stations carry E-85 (85% ethanol). Right now they are thinking about passing a bill in our unicameral that will allow stations to NOT post whether or not the fuel you are pumping has ethanol because they hope more people will buy it. I guess you have to look at the octane.