I bought a Ford with a plow a couple months ago out of necessity, but now a Ram with a Cummins is available for me to purchase. I'm now in the process of selling the Ford, and then buying the Cummins. 1989 Dodge W250, 1st generation Cummins, 4x4, long box, 7.5' Meyer steel plow (in EXCELLENT shape), 180,000 miles, rebuilt auto tranny 3,000 miles ago, new injector pump 900 miles ago, steel wheels, good tires, 5" stacks, 10 cab lights, for $2,600. This will be my first diesel, so any and all knowledge I can gain will be golden. Anyone have tips for me? What kind of maintenance schedule should I follow? Thanks!