2012 Ram diesel with over 1million miles

BenK wrote:
Most of the wear is from extended off time, where the oil film drips off of surfaces

As long as whatever oil used has enough film strength for that start...it won't be dry start

Today's dino oil is much better than just a couple of decades ago...when folks who cared and/or knew installed pre-oiler systems before synthetics were the norm

Just IMO...

Dino oil has plenty of synthetic materials to meet the API requirements.