Hi everyone, just purchased my second Dodge (see signature), first one was a 2004. 5 Cummins 5. 9. We have not taken delivery as of yet, so my question is how many miles for break-in does it need before pulling a fifth wheel? We have a 15,000lb trailer, and plan to take a vacation starting next month, but do not want to pull too early. I do know, at least on the 5. 9, that 500 was required, but since i'm new to the 6. 7 and no owners manual as of yet, was wondering what the answer is. I'm about to crawl out of my skin with excitement as i get to pick it up next wednesday. Anyway thanks for all of the help and look forward to being a tdr member and participating. :-laf