I like MPG. It is very easy to figure that if I increase my MPG by 2 and I have a 12 gallon tank I can get 24 more miles out of my tank. My normal round trip to and from work is roughly 36 miles. It would take me 2.77 days to get to the 100 mile mark, yet I know when I am over 36mpg each day's trip is less than a gallon of fuel. I guess when you are used to something it is difficult sometimes to embrace change. I'm willing to bet it would be difficult to get people to change because everyone wants to see that ever increasing number pushing itself to 40, 50, 60 or more MPG. Just my 2cents.
