What fluid for transmission.

[Bdsankey]

I also run the amsoil in my 6l80. Only thing I use that’s amsoil, my builder put it in there.

I don't "hate" amsoil, I just think they're over hyped for what you spend. They do use phenomenal base stocks (group 4 for most things) but that only goes so far.

Torque Drive and Heavy Duty Diesel Marine 15w40 are to products I will fight for all day as they're just flat out amazing but that's getting into the weeds and it's own topic haha.