Re: what oil u guys use in the south?
Where do you live? Are those original injectors?
I know 5w40 is popular with the 6.0 crowd but since you said cold starts are not as big of a concern then a 15w40 or diesel rated 10w30 should take plenty good care of you.
2002 F-350 ECLB SRW 7.3 4R100
6637 203* t-stat 08 diff cover Stancor HPX 6.0 trans cooler, Zone offroad leveling kit, Western UM 8'6" plow
Sold: 2004.5 Ram 2500 w/ 5.9 CTD, Reg Cab 48re