Does Ram use break in oil on their new trucks?

I've got a new truck & am wondering at what miles I should do the first oil change. Salesman said 8K which seems way too high to me. I was thinking 1k or 1.5K on the first change, but I'm wondering if Dodge uses break in oil on their new trucks. Also was thinking of putting synthetic in but someone told me the 5.7 Hemi's should not use synthetic oil. Any guidance would be greatly appreciated.