The type of power steering fluid used in Massey Ferguson tractors depends on the series of the tractor and the year model. Generally speaking, Massey Ferguson recommends using regular Multi-Purpose EP80-90 GL-4 or GL-5 tractor transmission/hydraulic fluid, or a Massey Ferguson approved equivalent. The model number must be clearly stated on the label for confirmation of the correct oil. For specific recommendations, it is recommended to consult the individual operator’s manual for the correct oil for your specific Massey Ferguson tractor.