I e-mailed Cummins Customer Care a question regarding the break in process. Specifically, what would be a good work load. I also told them I did not want to go to the dealership because they were not going to have a clue. Before I contacted Cummins called Nissan Customer Service in Toronto with the same question. The girl on the phone did not know what the break in period was, and had no clue it was in the owner's manual until she looked it up while we were talking. Enjoy.
Good afternoon Rick,
I know you don't want me to refer you back to Nissan, but since they warranty the engine, I would recommend that you ask them.
What I can tell you is that we normally break in the engine while it is at the factory, so when someone purchased the vehicle, they can start using it right away. Nissan has the rights to the engine since they warranty them, so what that means, is that the information about our engine isn't typically loaded into the system. This is due to an agreement between Nissan and Cummins.
There are some special break in oils. We recommend not using those types of oil.
Thank you for contacting Cummins.
Customer Care Representative
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