The Detroit Free Press has a feature on E85. Also known as "flex fuel", E85 is a blend of gasoline and ethanol made from corn or other crops. Only 4 Michigan gas stations offer E85 (500 nationwide), but the number is expected rise to about 2,500 by year-end as filling stations take advantage of new tax credits for the costs of retro-fitting pumps and tanks.
Read ALTERNATIVE FUELS: Gas stations selling ethanol to grow in '06 in the Freep (has list of gas stations)

National Ethanol Vehicle Coalition web site

Also see Energy from Nitrous Oxide? It's No Laughing Matter from Crain's Detroit Business

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