well, i may make you feel smarter chopper, with this little story from today......
as i was standing in line at a gas station, waiting to pay for my pop, i was just looking around, watchin people, (it was a loooong line) so this character is out by the pumps getting gas. hes talkin on his phone, and from what i could see, there were alot of YO YO YO's , and what not in his conversation. so hes got the nozzle in his tank, and hes talkin, and talkin, so he decides to sit in his car, while waitin for the punp to quit. well, this FOOL forgets what stage of getting gas he is in.........yup, after about 20 seconds in his car, i see brake lights, a bit of exhaust, and he pulls away RIPPING THE HOSE COMPLETLY OFF THE PUMP!!!!! then i saw the brake lights again..lol.....
what a hoser.....lol
we all got a laugh in the store, after we knew that we wernt going to go up in a big explosion......

etl, yeah, super clean does the same thing to the gas cap cover.......sounds like the same stuff you used......