Agree; most, if not all, of the Ford and Mopar specifications are API Sx and ILSAC GF-x which is every oil on the shelf for the most part.
But (for what it is worth), if you compare D1G3 to D1G2 or API you have a general representation of differences. The tests that are conducted are listed on the
Lubrizol site.
I am running M1 ESP 0W-30 C3 in my Ford and honestly, I have never had much luck with HM oils anyway so that is not a showstopper. I would much rather have the more stringent test criteria of the European oils.
View attachment 201222