E85 was $1.83 a gallon today. 87 octane gas was $2.13 and premium was $2.63.
I was at 110275 miles, last tank was at 110008 miles, for 267 miles on this tank. I filled up with 17.653 gallons, for 15.12 miles per gallon.
I saved $14.12 on this tank by using E85 vs. premium, not considering the mileage penalty.