rmac,
I caught that myself. Alot of the info, my uncle that was in R&D lube chevron/texaco, had already told me. He retired just before RP came on the market. He told me then that, the best syn they had ever tested then was red line. The best for personal diesel's was rottella. Also that all lube additives were snake oil.
They spec'ed motors before and after taxi's and police units were put into long term service. Also test motors on stands put thru extreme conditions. He didnt use the companies lubes in his own cars and trucks,,,LOL