Well, your first couple of sentences were referring to motors oils in the context of Dexos specs.Good morning!
So I was in the process of starting a thread where we could post technical details of various manufacturer specs. For example; Dexos1 has limits on piston deposits, reduced NOACK limit, etc. I was trying to create a centralized post where people could share the tech details they've been able to find, as these can be difficult, if not impossible to obtain. While researching this to get the ball rolling I happened to stumble on the following document from the FTC. I haven't had luck in finding why this was put together, but it starts with Dexos1 manual references then transitions to MaxLife and some payouts (Nissan, Honda, and Toyota) that were made due to manufacturers denying claims. I have a hunch that this involved (involves?) Magnuson-Moss and the argument that these manufacturers were in violation of the act, that's speculation on my part though.
Document can be found here.
In the future you may want to discard non-topical text.