Low oil pressure at idle?

Messages
5,523
Location
down in the park
yes. internal leakage in the pump stays the same regardless of rpm and bearing oil consumption likely drops at higher rpm. in any case, double pressure doesn't mean double oil flow through bearings or spray nozzles.

Drop rpm below 400 or so and the oil pressure light might flicker...
 

Avery4

Thread starter
Messages
554
Location
USA
yes. internal leakage in the pump stays the same regardless of rpm and bearing oil consumption likely drops at higher rpm. in any case, double pressure doesn't mean double oil flow through bearings or spray nozzles.

Drop rpm below 400 or so and the oil pressure light might flicker...
Good to know, thank you! I was thinking the engine's internal restriction stayed relatively constant throughout the RPM range and any change in pressure was mainly due to the pump pushing more oil at higher RPMs, but that may not be the case.

In any case I don't think having only 13-14 PSI oil pressure at idle is a problem since it doesn't need much pressure at idle and the pressure is good at any RPM above idle, so it's not like the engine is going to be running under load without adequate oil pressure.
 
Top