Posing another view on the whole ZDDP push.
That blog is a good read. His testing approach is similar to what was done in the OZ magazine
Street Commodores The problem with this 1 dimensional type testing is that it evaluates just one property - shear stability. And as you can see from the numbers in the Nightingale article the PSI estimates/calculations seem to vary based on the test apparatus. The highest value reported at rat540 is ~136,000 - the lowest ~47,000 whereas the Nightingale tests reported as high as ~295,000 and as low as ~1500 . . .
Moreover this type of testing has been placed in perspective on several forums online - including hot rod, enthusiast, and in this case an engineering site:
ENG-TIPS The best performing oils under this kind of shear stability 'benchmark' testing would be gear-box oils - the last thing one would want to put in an engine crank-case.
