Originally Posted by dawoodsman
Maybe someone can provide verifiable info that this is not a problem for the new Ram's, but based on long heard advice I don't think you want to run synth until you have a few oil changes under your belt with dino oil.
Many new cars come from the factory with synthetic oil in the crankcase.
It is fine to run synthetic anytime, and switch back and forth between syn and conventional.
Keep in mind, most "synthetic" oils are super hydrotreated conventional base stock, not synthetic at all. (thanks to a Castrol lawsuit - synthetic is a marketing term, not a definition of base stocks used).