Indeed!
And this is my thinking.
The API specification/regulations/requirements for motor oils is so stringent that if most of us only used store brands of motor oils such as SuperTech, AAP/CarQuest/AutoZone/ProLine(of course in the correct/required/recommended grade), we'd be using some of the best oils in lubrication history...I am not talking about any of those motor oils(that most of us never heard of) that fail the PQIA testing. Nor those few oils that may be at the very, very top of the charts(boutique) and unobtainable to many of us or grossly overpriced.
Keep in mind that I am only speaking about everyday motor vehicles, not that something special that enthusiasts have in their garage.
For your "something special vehicle", use that "special lube".
And I agree that the larger name brand oils typically come out ahead of the store brand motor oils in rigorous testing even if it's only by a small margin. And most engines with reasonable maintenance will never know the difference in everyday-ness.
Exactly. Does anyone remember the blackstone blog post where they stated that there was no "better oil." As long as oil met the spec, there was no trends they observed that differed one oil to the next.