<<I have found that ethanol in fuel is garbage, I put a tank full of ethanol blend into the 230E and it hated it, fuel mileage went down as well. No wonder our friends the oil companies are pushing for an ethanol blend, worse mileage equals more fuel sold.>>
Maybe fifteen years ago 10% ethanol was mandated in certain zip codes in the winter months in western Washington. After EPA air quality requirements were met, ethanol went away, thank God. It is true that mileage drops 10% which was proven to me, tank after tank. It's hard to measure performance except to say that it was noticeably down. Which means, obviously, that monthly fuel cost went up 10%. My Porsche isn't driven much and so I didn't want ethanol in the tank all winter, so I gassed it up in late September which I made last until normal gas was again available in about March. Maybe April. The main benefactors turn out to be ADM Corp. plus the Iowa corn farmers. RLE/Seattle
