Power Steering fluid

Does anyone know what fluid is used in a 99 Venture? My manual states GM power steering fluid. What I see in the store is Dextron III (tranny fluid), Honda Power Steering Fluid, Power Steering fluid (with no vehicle type) etc but no GM specific. I almost went with Dextron111 until I checked the manual.

AFAIK, just regular ol PS fluid is all that is necessary. Nothing special. I've used Valvoline Synthethic since I got my used 98 back in '01 without issue.