From what I've read about this, it's much ado about nothing, really. Very, very few stations carry the fuel, and most won't. It's too expensive to add new pumps for a fuel relatively few vehicles can or will use (you can't use current pumps, you need new ones specifically for E15). In addition, there's no demand for it. And, as mentioned above, the drought has really impacted the production of ethanol, making it a less appealing option. And finally, there's a push by lawmakers to suspend or lower mandates on how much ethanol the country must use this year and next. Between now and then, I suspect a number of industries will sue to have the ruling overturned.
So...nothing to get your blood pressure up for now. We're still years away, possibly forever, before we'll see this at the pumps.
