General Pump MW Owners Manual - Manual (Page 9)

GENERAL PUMP
A member of the Interpump Group
MW/S SERIES
Page 9
In any case, oil must be changed at least once a year since it may deteriorate by oxidation.
For room temperatures that differ from that mentioned earlier, follow the indications contained in the diagram
below, keeping in mind that the oil must have a minimum viscosity of 180 cSt.
VISCOSITY/ROOM TEMPERATURE DIAGRAM
Exhausted oil must be collected in an appropriate recipient and disposed of in appropriate
locations. In absolutely no case may it be dispersed into the environment.
Ref 300790 Rev.D
11-12