Hey guys just wondering what kind of mileage you are getting with your Dmax's. I have a 2003 Dmax and a 2003 8.1 with a Whipple Suppercharger. The 8.1 I am getting about 13 miles to the gallon with the blower and afew other mods. But the Dmax I am getting at best about 12 miles to the gallon. Shouldnt I be getting better mileage with the Dmax. The Dmax only has 4000 miles on it. When I pull my 33 toy hauler trailer I get about 9-10 miles to the gallon. Any ideas on getting better mileage on this beast .