I am ethanol free. I use RBOB oxygenated gas... or simply pure gas in my vehicle. I believe the federal mandate is with the use of MTBE additive, not ethanol. Because of its (MTBE) environmental factors, other oxygenates have been suggested. Simply MTBE is pretty much banned in the US! Instead, the federal government is pushing ethanol additive. State governments have been forced to pick up the slack with legislation on ethanol by the feds. But, the US government has no mandate strictly for ethanol. There are only state laws requiring states to label ethanol contents on the their pumps. Every state is different. I live in PA and no matter now much ethanol there needs to be a sticker. In NY they need a sticker only if higher 1%. In Ohio no sticker is required by the state if ethanol is used. Here in central PA you can still find non-ethanol gas, but not in Philly and Pittsburgh through state laws... so the cities use ethanol. Unfortunately, most merchant's now (mom & pop and unbranded gas stations) are going the ethanol way! Damn government subsidies to the corn farmers! It's very lucrative for gas stations to use ethanol because the government gives those merchants a huge break for switching.