When I worked in Springfield my farm truck was the v-10 king ranch.... I drove it everywhere and the best gas milage I ever got was 10 and that was empty on the highway... it would pull just about anything. I was surprised about that, but it got about 8 loaded to the gills. I loved it, except you had to stop constently for gas... tank was only 21 gallons (i think)or close there too.