Got the full report as a PDF today, but it's got some personal info so I hesitate to post it..

TBN was 3.2, and the only items that were different than the universal average were:
Boron - 109 vs avg 67
Calcium - 2911 vs 2155 avg
Magnesium - 26 vs avg 295

I can see the magnesium being less if internal parts used in the VG33ER engine are made with less Magnesium alloys (magnesium's kind of soft, isn't it? But lightweight.)

Not sure what the Boron and Calcium mean, but they didn't see any issues with it.

-=RB

EDIT - Boron Calcium and Magnesium are listed as disperants/detergents, so I'm thinking Mobil 1 uses more calcium/boron in it's detergent additives than other oils that use magnesium.. I guess.