TGMO 0w-20 is 227 VI a GTL made by Exxon/Mobil. I am changing my view of this oil that I have been using because of the high VI. (high VII) Not that Noack has anything to do with anything (IVD) but does point to the quality of the base oil. Noack on TGMO is 12.9.
Exxon/Mobil has it’s own lubricating branch. Mobil 1 is separate. You have a SRT, thought you might like to see this video. The oil they factory fill.
Too bad you cant buy this stuff anywhere. I honestly wonder why Pennzoil even makes it.