It seems to me from all the reading that there are an inordinate amount of failures in cars and trucks that don't see excessive idling (non fleet vehicles) and are not treated to low grade oils. Every single Mopar forum you can look on has multiple threads on camshaft/lifter failure discussions so there's seems to be something to it other than setting idle to low, cheap oil and excessive idling. I ask because some of these after market engine blocks could be solutions and I'm interested.