Hey Gene, you can find the list here: Ethanol-free gas stations in the U.S. and Canada or specifically for you in AZ: Ethanol-free gas stations in the U.S. and Canada
Unlike running higher ethanol mixtures, running pure gasoline in your car won't hurt it at all. From what I remember most mileage tests done by manufacturers are done with pure gas and you should certainly see a difference in MPG (positive). You will also probably pay more for your gas as well. If you can find it, USE IT.
Walmart pure gas > Shell 90/10
Unlike running higher ethanol mixtures, running pure gasoline in your car won't hurt it at all. From what I remember most mileage tests done by manufacturers are done with pure gas and you should certainly see a difference in MPG (positive). You will also probably pay more for your gas as well. If you can find it, USE IT.
Walmart pure gas > Shell 90/10
