I found it here: https://www.toro.com/getpub/6889
But also attached for safe keeping. I wanted to see if I could figure out how to do the fluid change. Hopefully I can get to the plugs on the top and bottom. If so I am home free. I know the large plastic reservoir body is easily accessible.
The last page has even more info on oil types.
Yet another source: https://shop.advanceautoparts.com/p/val ... -detergent
Pretty clearly barking up the right tree here.Valvoline Non-Detergent Motor Oil is specially designed for equipment specifying a non-detergent formulation. Meets or exceeds requirements for air compressors, hydraulic systems, racine vane pump, Denison HF-2, Vickers I-2865, ISO 100 Antiwear Hydraulic Fluid.