New truck broke today

[Cummins12V98]

My dealer says 10 k break in on the engine. I changed at 3k because I wanted a better oil and filter and to get rid of the major break in debris also the differential will be changed. I want the good stuff in doing a10-12 mile 2 month trip.

Engine is ready right out of the box. No break-in needed. Diff's need 500 miles before towing.

Good call on 3k change on your part.