I would have a few basic requirements for the oil of my choice. (Not brand specific)

Class label API-TC++ (air cooled engine oil, best of class, takes care of smoke, ash and a few other things)
Viscosity @ 100C >15 cSt (> means greater than, for best viscosity values in hot engine parts. This keeps bearings alive)
VI >150 (For low temperature fluidity)
Flash point >200°C (to keep oil in there where it gets hot, without it turning into vapour, or reverse engineering itself)
Mix ratio 2 - 4% or better still, 1 - 4%, (to mix with petrol at manufacturer recommendations)

Amsoil Dominator has these values:
class API TC (??OK?)
Flash point 92C (too low)
visc @ 100C 7.6 (too thin)
VI 156 (OK)
So it fails my requirements at viscosity and flash point.