ok update on the mileage. we are getting 18,6 now that everything has settled down. so almost back the way it was before the regen.
Mookie, i wish I could trade up to a 2015 but it is not in the cards right now.
Have not heard of the turbos going bad , other than if you don't use them, they tend to get "stuck" if not worked a little now and then. And yes I was probably idling it a little more than usual this last winter, then not heading south and not pulling the RV all contributed to the build up. so NO more of that for sure.