I like how some people that do not drive a gasser with a camper tells me that I get less than 10mpg. I have seen as high as 12.6 on my 6.2 with the camper on and loaded for the trip and like I said previously stated I had a 10.88mpg average over 11,000 miles to Alaska and back. This includes many stops for wildlife pictures and than take off again and then have to slow way down for frost heaves and then take off again and all of the road construction where you are sitting waiting to continue on which we know is not good on fuel mileage. I also had a rack on the front of my truck with a 56" wide solid tool box and never had any heating problems and believe it or not it did get hot in AK as it was over 95* there when we were there in Fairbanks. Also on the way home we were hitting over 100* areas and never had a heating problem even pulling the passes.
Like I said before you can drive what you want and I'll drive what I want but to sit here and try to tell me how my truck handles when you have not driven it is just plain silly just as I can't tell you how your truck drives because I not driving it. It you are trying to use what you use to have many years ago better come to the present times as things have changed. Also as far as the cost goes if I wanted to buy a new diesel truck today I could go out and pay cash for it and not even think about it. It is not the cost as the need, I don't need a diesel anymore after having many of them in the past, the gasser works just great for me.