ToMang,
What oil were you running on the first analysis? It looks like it sheared down pretty good in just 3000 miles. The others look like they held up great but you had a couple 4 quart additions which would ultimately effect the viscosity number.
Original was whatever the dealer put in.
The 4qt one was probably overestimated.
The one with high metals was really low on oil when I changed it. I didn't want to add oil when I was close to changing it and waited to long to change it. Ended up running it with low oil, stupid on my part.
Sent from the pocket porn device.