What do you mean by lower Z & P levels?
Lower than 700-800 ppm?
Magnatec D1G2, 5w30 VOA from from 6/18/18, not as bad as the QSUD VOA which was dated almost a year ago that JustN89 posted.
Compared to: (just a couple I was looking at)
Valvoline Modern Engine full syn from website
Valvoline Daily Protection & Advanced full syn 5w30 from website
My engine is a flat tappet and just don't think I want to go any lower. Was just lookong around trying to pick a good 5w30 for winter for my truck, I think the Daily Protection will work.