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New Cummins or Mopar CK-4 spec for 6.7L pickups?
Originally Posted By: Ramblejam You don't need to do anything; the Cummins ISB engine test (ASTM D7484) is a part of CK-4. In other words, any CK-4 oil has been validated against the specialized needs of your engine architecture. Thanks. I'm still trying to get a handle on oil specs, does the...- ATX_Megacab
- Post #4
- Forum: Heavy Duty Engine Oil (HDEO) - Diesel Vehicles
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New Cummins or Mopar CK-4 spec for 6.7L pickups?
Is there a new Cummins or Mopar spec number for older RAM 6.7L trucks now that CK-4 oils are out? I don't know what to look for in the new regime for my 2012 truck. Should I just look for the old MS-10902 or CES-20081 specs?- ATX_Megacab
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- Replies: 6
- Forum: Heavy Duty Engine Oil (HDEO) - Diesel Vehicles