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winter diesel oil

Discussion in 'Ram Trucks' started by OneBadDodge06, Dec 4, 2004.

  1. OneBadDodge06

    OneBadDodge06 Senior Member
    from Iowa
    Messages: 770

    what grade and type of oil do you use in the winter in a cummins?
  2. MSC

    MSC Member
    Messages: 75

    I use the same oil year round in my 97 Dodge with a Cummins.
    15w40 NAPA, it's made by Valvoline.
    160,000 miles without a problem.
    Anything I own with a Diesel uses this oil, see my sig below.
    I use a lot of it at service time. :eek: