There seems to be only one pump in Madison, WI that sells gasoline without ethanol. But even that comes at a price - regular gas without ethanol costs 10% more.
I was curious how much less efficient the traditional 10/90 ethanol/gasoline mix is. Went four tanks on pure gas in my 2010 Sonata. The result: 2.6% better MPH in comparison to the "contains up to 10% ethanol". So, alas, not really worth it considering that it costs 10% more. Oh well, seems like there is no way around paying the indirect corn ethanol tax, even if it's only 2.5%.
DK