One of the reasons for insufficient oil pressure in the lubrication system may be a low oil level in the engine crankcase instrument clusters your car has a warning light for low oil pressure, and if the oil level in the crankcase is low, the warning light for low oil level lights up in the on-board monitoring system indicator unit.
Warning! If the low oil pressure warning light comes on while the engine is running and continues to light at high speed, this is an alarming sign. You must stop immediately, stop the engine and find out the cause. Further operation of the engine with low oil pressure can lead to serious damage and large financial costs for repairs.
(Original source is on the resource: «www.vazbook.ru»)