Posting for a friend...
Mobil delvac 15w40 CK4 since new.
15,625 miles on truck.
4,969 Miles on this sample. 3rd oil change.
No oil added.
Aluminum 7
Chromium 1
Iron 25
Copper 85
Lead 1
Tin 1
Molybedenum 23
NIckel 0
Manganese 1
Silver 0
Titanium 0
Potassium 21
Boron 39
Silicon 17
Sodium 4...