Well yes, 12 k for the stuff that makes the engine run and 12k for the engine itself.
Seriously the more I think about what could happen with my diesel I feel like trading it off on a 1/2 ton ecoboost. I think one of the biggest issues on the 6.7 was some of them were cracking valves off and they rattle around in the cylinder causing you to need a new long block @ 12.5k.
Our fuel up here seems to be pretty good I have never had an issue with gelling and it was just -30 air temp -55 wind chill a couple days ago no additive. I have only drained my water separator once and it had only a few drops (when I changed the filter in it after I bought it).