Hi micka, can you tell us the make and model number of the hydro trans in that mower please? Without that, I can't find a decent manual for your transmission.
If all else fails, please give us the detailed model-plate information for both tractor and engine, and pictures of the tractor and the transmission. We might be able get a date, and perhaps a transmission type, from that.
Hydrostatic transmissions do not all use exactly the same oil, and we don't want to make a mistake that might end badly.
