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2019 Colorado dirty diesel oil

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    • September 25, 2024 at 9:18 am #832887
      Bodie19
      Participant

      Have 2019 Colorado Diesel, 30,000 miles. engine oil turns black shortly after oil changes. Is this normal?

    • September 26, 2024 at 11:59 am #833131
      GM Fan
      Participant

      Completely normal, especially on a diesel

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