Gallons E85: 3.513 @ $1.629
Gallons 87 Octane: 9.923 @ $1.779
Ethanol content of tank: 23.01%
Savings per tank: 6.883
Car is running good, no CEL's.
I suspect that the ethanol content of E85 has gone up, Meijer is selling it for 20 cents less than regular instead of 10 cents less. But I did my calc on 70% ethanol in E85.