FAA Powerplant Written Practice Test

What should be done regarding high oil pressure in an engine?

1. It should be minimized

2. It has no effect on performance

3. It can be increased to boost performance

4. It should always be above manufacturer's recommendations

The correct answer is: It should be minimized

High oil pressure in an engine can lead to various mechanical issues, including damage to seals, bearings, and other components. It is important to maintain oil pressure within the manufacturer's recommended range to ensure the engine operates efficiently and reliably. Elevated oil pressure can indicate underlying problems such as a clogged oil filter or a malfunctioning oil pressure relief valve, which can lead to increased wear and potential failure of engine components. By minimizing high oil pressure and ensuring it stays within the prescribed limits, the overall health and performance of the engine can be maintained more effectively.