What does low engine oil pressure typically indicate?

Low engine oil pressure is an important indicator of potential issues within the engine. It suggests that there is insufficient oil circulating to effectively lubricate the engine's components. This can lead to increased friction and heat, which are detrimental to the engine's health. Prolonged low oil pressure can cause significant internal engine damage, such as wear on bearings, piston rings, and camshafts, potentially resulting in catastrophic engine failure if not addressed promptly.

In contrast, the other options do not accurately reflect the implications of low oil pressure. Running efficiently would typically be associated with adequate oil pressure, not low levels. Normal operation of an engine would also require proper oil pressure levels to ensure all moving parts are adequately lubricated. A need for an oil change can be a factor in low oil pressure, but it does not encompass the broader concern for potential internal engine damage that can result from consistently low oil pressure readings.