I filled up at Meijer on June 6th. I got 6.025 gallons of E85 at $2.70 a gallon and 8.121 gallons of regular at $2.76 a gallon. This works out to be 38.83% ethanol and 93.9 octane.
The last tank, at 39.16% ethanol, got 22.4 mpg at 29 mph average speed.
As of today, E85 is still $2.70 a gallon. But regular has dropped to $2.66. I hate that!