I only found two references to the thread title:
Your comment about "no previous answer" was intriguing. There are 10 pages in the
second reference and your posting name is not seen unless you were posting under a different name.
If you are referring to, "It has been established repeatedly that no one oil company, blender, or formulator is going to give you an answer because of NDAs and IP," this an industry fact.
Your posting title, "Why Did Chevron lower the % PEA in their Techron Conentrate Plus" indicates you knew for certain that Chevron did indeed lower their % PEA and then asks why did they lower it.