Justin good to know that your only concern is the deterioration of the fuel and not the tank. Eddie I would like to know if the tanks that were destroyed by ethanol were the newer resistant type and if anyone else has suffered this fate as this would definitely put me off ethanol fuel. It would also be nice to have a definite answer from the factory to whether the tanks will hold up long term to ethanol but I don't think they would ever recommend it's use due to litigation.