Well, the truck has been running great, no issues until today!
First off the DEF low message just came on the DIC so I knew I would be heading into the dealer this week to get that filled as it is covered under our extended warranty to be filled when needed. not a big deal just time consuming!
HOWEVER tonight the wife and I went out to pull some weeds and do some quick yard work and I noticed I had about 8 quarter sized oil spots on the driveway. I got down and looked under the truck and noticed there were about 5 more including one that was fresh. I crawled under the truck and it looks like the rear main seal is leaking.
I found this thread and it looks like these are pictures of my truck!
6.7L Oil Leak
Headed to the shop in the AM I will update when I know more!