An instrument on the dashboard which indicates the oil pressure as the oil is pumped through the engine. If this gauge shows a sharp drop, reads low, or lights up, it is possible that there is no oil in the engine. Stop the vehicle and turn off the engine. Check the oil level and replenish it as necessary. A vehicle with no oil in the engine could destroy an engine within a kilometer (or a mile).
OIL PRESSURE GAUGE
Meaning of OIL PRESSURE GAUGE in English
English dictionary of automotive terms. Английский словарь автомобильных терминов. 2012