E85 was $1.75 a gallon today. 87 octane gas was $2.05 and premium was $2.55.
I was at 109775 miles, last tank was at 109474 miles, for 300 miles on this tank. I filled up with 17.2 gallons, for 17.4 miles per gallon. I had more highway miles this tank and less a/c.
I saved $13.95 on this tank by using E85 vs. premium, not considering the mileage penalty.