The farm lobby has been pushing hard to increase the amount of ethanol allowed to be mixed into gasoline. And it seems like the Obama Administration is obliging.
The vast majority of today's ethanol comes from corn. The alcohol is mixed in gasoline to make it burn more cleanly.
Right now, the standard is 10% (a 10% ethanol, and 90% gasoline mix is most likely in your gas tank right now).
The EPA increased the allowed amount of ethanol to a 15% mix last fall for cars made after 2007.
Now, the Associated Press reports the EPA is poised to allow the 15% mix for more cars. From the AP:
Two people familiar with the decision said late Thursday the agency is expected to announce on Friday that 15 percent ethanol in gasoline is safe for cars manufactured between 2001 and 2006. Both officials requested anonymity because they were not authorized to speak publicly about the decision.