In case you were not aware, some states are allowed to sell ethanol but not the Sate I live in so I have to drain the tanks sometimes to get an engine that runs well.
Besides no ehanol there is one other important property that needs to be addressed, octane.
Removing the ethanol or not putting it in will lower the octane however there are other, better ways to increase the octane number and as long as the octane matches the cars s needs that's fine although I personally prefer to buy my fuel from Exxon, Mobil, or shell (last).