Ethanol-free gas question

[flynrider]

Up here at times in the Milwaukee area because of air pollution they make them sell oxygenated fuel so when you add that to Ethanol
it does some pretty bad things that sit with fuel in them.

Just an FYI, the ethanol is what makes the fuel "oxygenated". Years ago oxygenated fuels used to be gas mixed with 10% of an ether compound (MTBE) or ethanol. Since MTBE was banned a decade or so ago, the only oxygenate used is ethanol.

We have the same EPA oxygenate requirement here in Phoenix for the winter months, so the only thing available is E10.