I have a thread about this at the other site, but wanted folks to be aware of the political maneuvering about this topic. Basically, the Ethanol interest are trying to get the EPA to force widespread adoption of E15 fuel so they can sell more ethanol. Never mind the fact that E15 can damage engines not designed to handle it (most motorcycle engines, among others).
Here's a link to the AMA Federal Action Center - Federal Look for the article starting "Hosed again..." The article has a link that makes it easy to contact your US Senators and Representative.
