I've had years of experience with this old, NS-2, Nissan CVT application. My favorite fluid is Amsoil CVT (cheaper than Nissan and the higher viscosity holds up better when overheated) but I've had good results with several aftermarket CVTF as well as Valvoline Maxlife ATF in this CVT application.
For a Toyota T-IV application I would expect the same kind of results. Amsoil or other quality fluids (Red Line, HPL, Motul...) will perform with excellence but a typical "multi" (Castrol, Valvoline, Mobil...) will be just fine.