A poll to see what your gas milage is. I will start: Car: 98 Accord 4-door Engine: Straight-4 Gas milage (when it was gasoline): ~25mpg. Gas milage (now that we have 10% ethanol) ~21mpg. I lost roughly 4-5 miles for every gallon now that we are using 10% ethanol in our gasoline here. Don't put guesstimates, I kept the receiptfrom the gas station, it was 13.269 gallons when I had an empty tank with the gas light on. I used the tach to track the milage, it was 280miles. Now the gas light is back on. Just round to the nearest value. When in doubt, round down.