Research results on Gas vs Diesel mpg costs...surprised!!

There currently is no gas motor truck capable of pulling my 13,500 pound fifth wheel. That is one advantage you have not figured into your equasion. If two people with identical and assumed identical weights were pulling the same trailer, one with a diesel and the other a gas motor, then your probably right. But the vast majority of diesel truck owners are pulling weights that exceed even some of the outlandish claims what a gas motor truck can handle.