After reading this post, I set out to do research on this oil. It's very very new and sites like bobistheoilguy had no data on the oil. I went on the Mobil 1 website and watched the propaganda video. From the video, it looks to be very good oil, as most are. Lots of points are vague and of note was the fact that they specifically pointed out good cleanliness in all 3 engines, testing for all 3 engines, and that they tore down all 3 engines, but specifically only mentioned the Lexus when talking about low/no wear in the crank and bearings. They did this is in the video and text, which sort of leads me to believe the other engines showed signs of wear, considering they made the video and weren't on a set time slot.
I was really interested in the hot oil behavior they mentioned in the shaft test, where they super heat a part and spray oil on it. Any discoloration left behind was caused by the oil burning and leaving varnish or deposits. It obviously did the best in that category, which is interesting.
The big unanswered questions for me had to do with acid buffering and TBN, since these are the real constraints on extended drain in a healthy engine that has no special lubrication issues, e.g. the 1MZ-FE V6 with all the post-2002 upgrades to improve oil temperature management, but not
the 2AZ-FE oil-burner. Mobil 1 AP is clearly positioned as an Amsoil Signature Series killer but unlike Amsoil, Mobil's marketing literature does not give a maximum number of operating hours--just a maximum length of time (1 year) and a maximum mileage (20,000 miles). TBN might well hold up over 20,000 mostly highway miles accumulated over a year, but not if the 20,000 miles includes a lot of idling. As an economic proposition, extended drain is tenuous since you go into the hole on lab testing ($35/sample at Blackstone before quantity discount) to establish a robust drain interval before you start saving on a reduced per-mile oil cost.
Pennzoil Platinum is fairly typical of a budget-priced full synthetic ("Walmart synthetic") that supports reliable clean operation if changed at the factory intervals. BITOG has a thread giving results for it at about 10,000 mostly highway miles in a Toyota (Highlander, I think) with the 2GR-FE V6. Blackstone lab results showed zero shear but TBN down to 1 (the minimum acceptable value--it is widely thought that Blackstone's TBN measurements are more conservative than other labs'). This is what I rely on for a margin of error if an oil change falls due when I am hundreds of miles away from home base. (I don't use iffy-lube places or haul oil change equipment on roadtrips anymore, and don't use conventional oil at all because it shears down fast and has bottom-of-the-barrel sludge resistance.)
Returning to Mobil 1 AP, I really liked the visuals from the thin-film oxidation test too, but when the car is 500,000 miles old and looking like a junker, and the cam covers come off for the first time, does it really matter whether the lubed parts look silver or gold-colored?