Ted,

Thanks for that link. I did not consider the decline in mileage with ethanol, but I now have another reason to keep putting in the non-oxygenated fuel. I buy it at Mills Fleet Farm in Lakeville, but I'm sure it's available elsewhere.

I remember reading somewhere else once that ethanol dries out seals in an engine. That's my main concern, as I just had my 420SEL motor rebuilt last year.