On the instrument cluster, if the red oil pressure warning lamp lights up, what anomaly does it indicate in the lubrication system?

Question

DentroTest · Accepted Answer

The red warning lamp with the oil can symbol on the instrument cluster is an immediate stop signal. This sensor monitors the pressure of the engine lubrication circuit. If it lights up, lubrication is deficient because the oil pressure has dropped below the minimum needed for the lubricant to reach and protect all the moving parts subject to friction (connecting rod bearings, main bearings, camshaft, etc.). Common causes may be an extremely low oil level, an oil pump failure or serious leaks in the circuit. A low lubricant temperature is not what this lamp warns of, because that temperature is measured with a specific thermometer. Nor does it indicate excessive pressure, because an overpressure in the circuit is normally absorbed and regulated by the relief valve.

On the instrument cluster, if the red oil pressure warning lamp lights up, what anomaly does it indicate in the lubrication system?

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