I mainly use Rotella 10w-30. Everyone has their favorite brand, but price is usually more important for me since I change it often. Fancy dirty oil isn’t better than cheap clean oil IMHO. If it costs too much to change it every other ride, then I’m not using it.
94mm bbk, +4 stroker, Hot Cams, Vertex piston, FMF Power Bomb header and Power Core can, KW black diamond valves/dual springs, FCR39, K&N, Elka long-travel LT fronts and rear, Houser +3, +3/4 LT A-arms, American Star pro xs chromoly tie rods, Dyna non-programable, Tusk +3 axle.