define "right after" .even though alcohol is a solvent its not gonna work that fast. they were messed up to begin with and would have failed soon anyway. alcohol might not have had anything to do with it. but if it did its not 100% to blame. most rubbers that are designed to withstand gasoline will withstand alcohol just the same. not to mention alcohol has been used in our gasoline for like 20 years. maybe before the labeling was mandated, maybe not. i dont know for sure, but i know i have have been using nothing but E10 for over a year (3 separate cars) and have experianced no problems. my gas milage may have dropped a lil but if it did i have not noticed and i watch my milage very closely. i was even able to get 42 mpg out of a stock civic during that time period.