tank #30

Last tank lasted 270 miles before the gas light went on.  No check engine lights thrown.

gallons e85: 4.012 gallons @ $1.559/ gallon
gallons 87 octane gas: 8.896 gallons @ $1.859/ gallon

ethanol content of tank: 34.36%
octane of tank: 92.55

savings per tank compared to premium @ $2.359/ gallon: $7.66