Not a big deal to most of you but I just completed a 500.4 mile tank of fuel. At that point the last segment of the fuel gauge was blinking so I filled up right away to see how much remained in the tank. The miles to empty was showing only 23 miles to go. But look at these numbers. Here is the computed mileage: CONS was reading 56.4 mpg at fillup 500.4 miles 9.353 gals used 53.5 mpg 11.9 gals capacity 9.353 to fill it 2.5 gals left So really at 53.5 mpg x 2,5 theoretically I could have driven another 133.75 miles to fully empty the tank. Or if you want to add the 133.75 to the 500.4 it's a tank that 'could' have run 634.15 miles. How the 'miles to empty' is figured I don't know but going by the above numbers it's way off. Apparently you should be able to run it to "0" and keep on going! Thanks!