Ram Heavy Duty Forum

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Recent content by Ndacigl

  1. N

    2007 Dodge 3500---BLACK OIL!

    This question may have been beaten to death, but I need some info please. I just had my oil changed on the Cummins turbo diesel 6.7 litre. I used the Valvoline premium blue that Cummins recommends, to my surprise after the tech installed the oil and having me start the engine and shut it down...
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