I suggest you post your question in a Rav4 or Camry Toyota forum, You may get more responses , or do a search in those forums, you will likely get a broader response.
Good luck, if you find any info from those sources, please update this thread.

 

same person - name change already!

 

Whatever.....done with you two.

 

Here is a list of additives and improve the wear protection of motor oil:

 

At the end of the day:

 

This subject has probably been discussed more than a few times at the Bobistheoilguy forums where they get very technical about all types of lubricants, filters and other maintenance etc.
Scroll almost to the bottom of the main forum page and you will see their oil additives section. https://bobistheoilguy.com/forums/fo...l-additives.5/

https://bobistheoilguy.com/forums/