Ram Heavy Duty Forum

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Recent content by m.parker

  1. M

    Cummins break in?

    Was your oil black the first time you changed it?
  2. M

    New truck

    Does a brand new Cummins diesel have break in oil in it? My company truck has like 4000 miles on it and the oil is black. I wouldn't think the oil would be that dirty already.
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