Hi all, I have had other diesel trucks before but this is my first Cummins. I have recently acquired an 03 Laramie with 51k miles. It sat around a lot at its former residence. I am gonna need some guidance making sure I make the right moves with this truck. I am gonna try to go high mileage with it. I have no plans to modify it unless it helps with longevity. Any thoughts? Thanks in advance.