The suction pressure of a system is 60 psig, the discharge pressure is 207 psig, and the oil pump outlet is 85 psig. What is the net oil pressure?

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Net oil pressure is the pressure rise the pump provides from suction to outlet. It’s found by subtracting the suction pressure from the oil pump outlet pressure: 85 psig minus 60 psig equals 25 psig. The discharge pressure of 207 psig shows the system’s pressure after losses, not the pump’s own pressure rise. So the net oil pressure is 25 psig.