I would normally go for BP gas, but the other day my buddy and I were talking about how they put ethanol in their mix. And he was saying how ethanol deteriorates aluminum. For one, does anyone think this is happening or not? Second, considering other brands, I'd like to keep getting 93oc or higher on a daily basis. I was considering Shell gas too but haven't got much research on the subject done yet. What gasoline brands do any of you recommend for quality of gas and generally the same prices?