Find ethanol-free gas stations in every state:
http://pure-gas.org/
My career was in the wholesale petroleum industry. When ethanol was introduced it devoured our pumping and metering equipment. Every rubber seal and gasket dissolved. My company had upgrade every component of every machine.
I also fly a small airplane. Ethanol is not permitted in av-gas due to it's hydrophillic (water loving) characteristics. It absorbs moisture from the atmosphere - deadly for carburetor icing at altitude.
I don't worry about ethanol compatibility in my fuel system because my classic cars never touch a drop of ethanol. You'd be surprised how many stations carry non-ethanol ("clear") fuel - sometimes you have to ask where they keep it.