Ecodiesel: 19.46 MPG Towing 7,020 lbs.

Not bad mileage even for it's low wind resistance. But all this back and forth about dic verses hand calculated doesn't take into account inaccuracies of the gas/diesel pump. I don't know what the allowable tolerance is but we can be sure any error is to their benefit. Speedos are often 5%~ optimistic and rest assured odometers aren't going to give us any free warranty extensions. Hoping the new 1500 diesel continues to be a success. Don, are all the Mexican plants union now? If so that's a good thing.