Interesting. I had to have my oil filter/cooling adapter replaced under warranty on my 2016 last fall because it was causing low coolant light. Never did see a leak on the ground in my garage.
2006 2500HD D/A LT3 4x4 CC Stock..Silver Birch Metallic...Traded for
2016 2500HD LML LTZ Z71 4x4 CC Summit White...Traded for
2019 2500HD L5P LTZ Z71 4x4 CC Summit White