I have a 2013 Duramax with 130k miles. We’re in the middle of a 6k mile trip pulling 15.5klb 5er and I’ve started to get a turbocharger engine code (P2599). This first happened 3000 miles ago when...
^ Great truck there! Had a 02 back in the day, that with just a tune would run with any of the newer trucks or better, IMO. Newer ones may have more tech and be heavier duty, but for most purposes, a LLY or LBZ Dmax is still one of the best rigs out there.