I've asked a few questions, and was told any gas in the state of Mo. has ethenol in it. The exception to the rule is buying gas from a marina. Never heard of burning plugs up, guess it could happen. As for blowing fuel out, take a lesson from the boys in K.C. electric drill to the bottom of the tank..."GIT ER DONE"... or my favorite the last words spoken by a red-neck...HEY GUYS WATCH THIS...