It'll be quite a bit. Because if you have garbage going in, you'll have garbage going out.

For every pound that you're low, you're losing 2 percent of your fuel economy.

Between your tires being low and your alignment being off, you could easily lose 15 percent of your efficiency, just in your tires.

Now things are moving a little bit harder and trying to get this engine that's designed to run on something a lot thinner and will affect your miles per gallon.