I hate diesel trucks! Lol.
I was right there with you on that one brotherman, but I am sold now. I towed my 21-foot Hallett, on her maiden voyage, along with all my camping gear and enough tools (including cherry picker and engine stand) to pull and rebuild my engine and pump, if necessary, in an $800 beater 83 6.2L Suburban. I made it all the way to Crazy Horse Campground in Havasu, from Colton, CA on less than 18 gallons of fuel. There is no way one of our big block duallies, or even a small block, could have done that. Granted, I did not set any land speed records on the way out there.