Just filled up my 4th tank of gas. Best tank was 12.8 and worst was 12.3. Granted most of my driving is city driving, but shouldn't I be doing a little better than this? Advertised was 15/19. Our suburban which weighed more had a bigger engine and was 1995 technology got 10 mpg!
Is this the norm?
BTW, this is computation using the miles driven and gallons filled (not the on board computer).