Anybody has any problems running their 126 gas car on E10 fuel (90% gasoline, 10% ethanol)? Florida has switched to E10 this summer and it really pisses me off that all grades including premium fuel are mixed with ethanol now. I am still able to find ethanol free gas here in town at one gas station, but such stations are practically nonexistent anymore. Anyway, I have not tried E10 in my '84 500SEL yet, but I am curious if somebody else has run their 126 on E10 without problems. Also, can '84 500SEL be run on regular gas without knocking? This is a fairly low compression engine and I read somewhere that it would do OK on regular. I run premium in it now just to be on the safe side.