Oil pressure refers to the force exerted by oil within an engine's lubrication system. It is crucial for ensuring that moving parts are adequately lubricated, reducing friction and wear. Proper oil pressure helps maintain engine efficiency and longevity. When an engine runs, a oil pump circulates oil throughout the system, creating pressure. If the oil pressure is too low, it can lead to insufficient lubrication, potentially causing engine damage. Conversely, excessively high oil pressure can indicate blockages or other issues. Monitoring oil pressure is essential for maintaining a healthy engine.