Add a coolant filter and transmission filter from DieselSite, get a ScanGauge to monitor the difference between your oil and water temperature (no more than 15 degrees) and change the oil and fuel filters with OEM religiously. The only reason I don't have my 6.0 anymore is because it was sideswiped and totaled. Had the EGR cooler replaced when it went bad, had the mechanic put ARP head studs in it while he was doing the work. That truck did well until the day it was totaled. Went out and bought a new to me 2008 F-250 with a 6.4 Powerstroke. Bone stock, but I will add the DieselSite filters by spring just for sake of general principles.