Fuel mileage diesel vs gas

Here's some real world numbers for the diesel: We just completed a 9,800 mile trip, including lots of really bad roads, and the overall fuel economy averaged 13.93 mpg. During the trip, we towed a Mini Clubman loaded with 25 gallons of diesel on the safari rack and other stuff inside. We drove from Las Vegas to Iowa to Montana, through the Yukon Territory, did the Alaska circle, then back to Seattle. Along the way, we could out run any of the gassers or diesel pushers on the hills. Gassers because they loose power at altitude, DPs suffered from power to weight ration.

IMO, get the one you want, you can always justify it later. ;)