I filled up at Meijer last night.
I got 4.008 gallons of E85 at $1.80 a gallon.
I got 10.512 gallons of 87 at $1.90 a gallon.
My new tank is 26.37% ethanol and 91.57 octane.
The last tank finished at 21.5 mpg at 25 mph average speed. The awful weather is reflected in that awful mileage!