Its from the 3rd injection event on the 04.5 and newer engines. Its a in cylinder EGR thing. The black is from the soot. Nothing to worry about. When I bought mine, they said they changed the oil. I changed it anyway when I got home.
The Cummins symbol on the Valvoline is just for marketing between the two companies. Valvoline is no more superior than any of the other brands. Heck the best additive package in a dino oil comes in the Mobile Delvac.
Factory fill for Cummins might be Valvoline. Highly doubtful dodge's factory fill is Valvoline. When you go to the dealer for an oil change you never know what 15w-40 they may have. They are going to go with the lowest price oil that meets spec.
- 2004 2500 QC Short Bed, 4x4, 48re, Brite White, HOG 4" T-304 T-Back, Self made PSMBuick style intake, Isspro Pyro/Boost/Tranny Temp sittin on the dash
- 06 Pilgrim Legends 30RE2SLF-5 12,000lbs loaded
- B&W Hide-A-Ball w/5th wheel Companion
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