Bob:
http://www.e85refueling.com/
I found an E85 station that's only a few miles from my house, near the Pentagan. I tried the mix ~E30, but still only about 120 miles into the first tank. So far I'm about 1.5mpg below my long term average average

... I do see the car learning already the new mix. My first day driving I was down 5mpg below average driving the same. I'm going to give it 2 tanks to see what the results will be to see if it's worth the hassle.
-Fadi
1991 Mazda Miata to beat Corvettes at the track
1999 Dodge Ram to climb through rocks and brush
2004 Honda Civic Hybrid to make up for the other 2