The STP blue cans at local AZs in this area are still a combination of the old fram filtration filters (Fram/Champ). Examples include the shorty 6607 being Champ made classic design, the S2808 being fram fiber construction and the common 3614 being an ecore. At last check a month or so ago they had manufacture dates into late April of this year.
That finding is contrary to information posted dating back to February of this year on this board that all STP blue cans had been off shored and that remaining was old stock. But, perhaps 'if' that happens at sometime in the future then it can be said to have been true. At this point at least in this area though, not so.
To topic, sounds like a compromised adbv. While it can be annoying, hardly a death knell for the engine.