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What Oil to use?

7K views 10 replies 11 participants last post by  mwacosta 
I am a new dodge owner. The manual indicates that you only need to change the oil no later than 15K miles? The manual also recommends using synthetic 15/40. I have had two power strokes and I typically used Rotella and changed oil about every 5K miles. The 15K surprises me. The onboard computer will tell you when to change oil also, but this is just a time/mile function and has no bearing on your use.

Would like to hear how often you change your oil for your cummins engine.

Thanks,

mwacosta
2013 3500 crew cab 6.7 Cummins.
 
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