2013 Ram, high hours idling

[RamDriver]

I bought a used 2013 Ram 2500 SLT CC Long bed 6.7L Cummins diesel, 68rfe automatic, a couple weeks ago. AFTER I bought it, I found out it had 1,084 idling hours, in addition to the 1,176 hours driving only 20,109 miles. I was more than a little upset to find that my dealer sold me a slope truck. That is to say, those thousand hours idling were in super cold temps, down to -50 F, on Alaska's North slope oil fields. The owners guide clearly tells us not to idle our trucks, but I don't have a choice left in the matter, so I thought I'd start a thread to share info on these pickups with high idling hours. On my way home after buying it, I got a check engine light, with the message "service def see dealer". Back at the dealership, they did nothing but reset the light, and it's stayed off since then, almost two weeks and 700 miles ago. I think some soot broke loose and the def couldn't make up for it, since I was loading it up, spooling the turbo, and actually driving it like I owned it. I don't plan on doing the deletes, since I'm a rule follower, plus I plan on selling it sooner than I originally intended, because of its earlier history. The oil is pretty dark. I'll change it early, the first time, and always use synthetic. So far, the one bad thing I have to say about the truck itself, is that the exhaust brake really disappoints me. It's not broken, but rather seems to be programming issues, with the torque converter unlocking.