welcome!
I have to ask, but why did you buy that truck? My bother has a 2004 GM druamx diesel and drives like a race driver (he is a cop) and gets 17-18 MPG. I am sure with some tweaking of driving style that truck is capable of 22-25 MPG. So if you must have a truck there are better ones out there.
this leads me to the next question, why a truck?
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