What is the minimum oil pressure?

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Multiple Choice

What is the minimum oil pressure?

Oil pressure provides lubrication to the engine’s moving parts, so it must stay above a minimum to prevent excessive wear or damage. For most light piston engines used in training aircraft, the minimum acceptable oil pressure in flight is 25 psi. That makes 25 psi the threshold you use to gauge safe operation—values at or above this are acceptable, while pressures at 20 psi or 15 psi indicate a lubrication problem and require reducing power and landing to check the system. A reading around 30 psi is fine and simply indicates healthy pressure, whereas the lower figures point to an issue needing attention.

Oil pressure provides lubrication to the engine’s moving parts, so it must stay above a minimum to prevent excessive wear or damage. For most light piston engines used in training aircraft, the minimum acceptable oil pressure in flight is 25 psi. That makes 25 psi the threshold you use to gauge safe operation—values at or above this are acceptable, while pressures at 20 psi or 15 psi indicate a lubrication problem and require reducing power and landing to check the system. A reading around 30 psi is fine and simply indicates healthy pressure, whereas the lower figures point to an issue needing attention.

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