It's my understanding that the synthetic oil starts to degrade, if this the right word, at 350, I haven't pulled my camper which is about 4,000pds, I read a lot of posts on this forum which I think is great lots of knowledge out there about this truck, way more than sales...
Love this truck but these posts scare the hell out of me, from oil change, to what type of oil to lots of issues, I'm hoping someone can tell me that this is a good reliable truck