First two samples were Motul 10-40W Full Synthetic, and now I run Mobil 1 Full Synthetic.The oil stayed in grade much better than the two previous samples or did you use a 30wt oil on the other samples?
What oil did you use during these 3 samples?
What were Blackstone comments?
The overall report looks good. Post it to bobistheoilguy.com for more insight