First oil change on new Ram.

Id break it in completely on dino oil, right up to the handbook mileage. Then Id go synthetic just because it holds its viscocity better than dino. 10K is a long time but if you drive it like a taxi, Id do it sooner. Long freeway drives would stretch it out. Diesels fouls oil way faster than gas motors but the black isnt dirt; its <1 micron soot that is non wearing.