So it looks like they're using some type of cleanliness booster that gets you around the lower SAPs levels. Alkylphenol shows up on the MSDS for Mobil 1. (*pure speculation).
This was one of the formulations in the patent:
A lubricant composition, consisting of:
10% polyalphaolefin base oil;
64.21% Group III base oil;
5% alkylated naphthalene co-baseoil;
4.99% of supporting additives including antioxidants, detergents, antiwear, antifoam, inorganic friction modifiers and pour point depressants;
6.4% hydrogenated isoprene star polymer
7;1% of a cleanliness booster;0.74% borated PIBSA/PAM dispersant;
3.96% of an ashless, dispersant-stabilized borated friction modifier Including: a tetrahedral borate anion having a boron atom with two bidentate di-oxo ligands both being a linear C18-tartrimide; a first dispersant comprising a conventional ammonium substituted polyisobutenyl succinimide compound having a polyisobutenyl number average molecular weight of 750 to 2,500; a second dispersant comprising an ammonium substituted polyisobutenyl succinimde compound having an N:CO ratio of 1.8 and a polyisobutylenyl number average molecular weight of 750 to 2,500;