I am trying to choose which conventional oil to use with ARX? I don't want to be too technical but as I look at oil analysis from PQIA I find some major differences in the additive packages.
So, my question is this. Havoline is higher in Moly and Mg with a touch of Boron. Mobil 5000 is high in Moly and Calcium. Pennzoil is high in Boron and Sulfur and no Moly. Quaker State is very high in Boron with a slightly high Moly. Note, these numbers are relative comparing Castrol GTX, Exxon, Citgo, Havoline, Kendall, Mobile 5000, Pennsoil Yellow, Quaker State, Shell, and Valvoline.
Does Boron, Mg, Cal, Moly enhance or inhibit ARX's ability to perform?
Not in any way these additives comprise what is called a simple additive package. This "Simple Additive package is formulated according to the oil company's specifications. As you posted they all use some different additives.
Lubrizol Corp is a major manufacture of additive packages for most oil company's. They formulate per the oil company's specifications.
Oil does not wear out it gets dirty full of particulates, third party abrasives etc. it is there additive package that wears out. Auto-Rx will keep additives performing at high levels while keeping your engine clean.