g the pump. U.S. UNITS OF MEASURE Temperature +50°F to +155°F +20°F to +100°F -20°F to + 60°F AGMA Industrial EP Gear Oil AGMA No. 6 EP or ASTM/ISO Grade No. 320 (viscosity 1335 to 1632 SSU 100°F) AGMA No. 5 EP or ASTM/ISO Grade No. 220 (viscosity 918 to 1122 SSU 100°F) AGMA No. 2 EP or ASTM/ISO Grad