You may want to look at this: https://540ratblog.wordpress.com/2013/06/20/motor-oil-wear-test-ranking/

Interesting reading about resistance to wear in PSI and how some oils that are supposed to be better than others don't really rank well.

Matt
69 Dart Swinger 340
83 W350, Megasquirted with 46RH
Old news: 72 Demon street/race mobile
Latest: 70 Duster backhalf car
and even more