Full SAPS and engine protection

[Doublehaul]

Emissions aside, do full SAPS oils tend to protect an engine better? I know there is likely no definite answer to this...just curious. I run a full SAPS oil in my truck (m1 0w40) and the UOA results show far less wear metals in the oil than the universal averages. The kicker is that i run a 10k oci and universal averages on the 6.2 are shown for 5k. I also plow with my truck and live in a very cooooold neck of the woods.

Just curious as to why my numbers are different.

 

[Jetronic]

The oil lasts longer before you get breakdown signs like varnish. That's in my experience with low sulfur fuels. Once the oil starts to break down I think it likely that the wear metals go up.

Keep the OCI short enough and there's no issue, but then I wonder about the effectiveness of the low saps formulation to protect the emissions equipment as the beginning of the oci is likely the most damaging through excess evaporation.