By the way, are you following the break-in procedure in the owners manual?
Are you doing anything over and above that, i.e., I always constantly vary the throttle for those first 500-600 miles, so I never use cruise during that time, I also heat and then fully cool the engine/trans starting with shorter drives and then longer drives to slowly relieve the manufacturing stresses that the parts go through during manufacture and assembly, an analogy of which is like the annealing of ammo cases after the forming process, it makes the metal more sturdy and workable. I am also old school, I see no downside to an early oil change at between 500-1500 miles, it never hurts to remove that first heavy load of silicon and metal that occurs when things are getting to know one another inside the engine, all this can also help break-in the trans/diffs/transfer case etc. more gently.
Again, IMHO/YMMV