There are several folks on the Ford forums that use Tractor Supply house brand oil & can be a good value. There is a Mobil Delvac rebate going on right now too but the only Delvac that has that specification is the Delvac Extreme 15w-40 & has been my go to oil lately.
As you probably know Magnesium would help to offset but yeah still weird proportions on this old 90's formula.
OP: any idea why the high copper? How many miles on this Pathfinder?
It looks real good for almost 10k. Great run here on this filter. You're not going to need as many holes as louvers since one hole is much bigger than one louver.