I accidentally filled up with E10 bringing my V70T5 home from Omaha last
summer. Mileage went from 26 to 24.
I was in Brazil in the mid-90s and found that they had almost totally converted
to cane-based ethanol as a motor fuel. Mileage was worse and the colonel I
talked to told me that they could not get a muffler to last more than 6 months.
As far as I am concerned plain hydrocarbons are better fuels than alcohols no
matter how you slice it. Even LNG is better, although somewhat less convenient.
I don't know if they still do it but in China for a while you could see pix of
buses with big gas bags on the roof to carry low pressure natural gas.
For many years all the oilfield engines ran on natural gas.
And don't even get me started on what happened when I filled my white 164 with
E10 in Estes Park in the early 90s!
--
George Downs, Bartlesville, Heart of the USA!