Already have it in my Camaro: 50/50 blend of M1 0w40 and M1 HM 5w30. This may seem like a strange combination, but I didn't want to sacrifice zddp content by using an SN-spec 30-weight in the blend. The additive contents from BITOG's VOA section are:
Element, 0w40, HM
Mo, 74, 72
B, 221, 92
Ca, 3003, 1014
Mg, 19, 737
P, 893, 925
Zn, 1023, 1005
The anti-wear additive contents are surprisingly similar between 0w40 and HM. The major difference is in detergency, with 0w40 depending on high Calcium, and HM uses Ca/Mg. The final viscosity of the blend ends up being right on the dividing line between 30 and 40-weight, and an HTHS right at 3.6.