[cortcomp]

Brad54: I have an 07' half ton crew cab 2wd with the vortecmax 6.0L (367) cu in motor. Even shutting down 4 cylinders during cruise, etc still ends up with 15MPG combined city and highway, and i live in a flat state.

You should be able to get that or more in most classic vehicles, as i drive gently most of the time. I think the classic vehicle is a win in most categories except safety.