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5-10 psi at idle with a warm to hot engine is not unusual with a well used engine but is low enough to ring alarm bells if that is the reading at speed. The manufacturer will issue specifications for an oil pressure test but as a general rule the test would be made at around 2000 rpm and the oil pressure should be around the oil pressure relief valve lift-off pressure which commonly is about 40-45 psi but could be higher or slightly lower.
Oil pressure has little relationship with engine power as long as it still has some...
If the oil pressure is low the cause might be simple or it might be complex and expensive, but whichever it turns out to be, rectification should not be delayed even for a day...
Well according to the owners manual, anything from low up to the last mark is normal. I think they mean anything from the low mark up half way is normal for idle.
If the gauge stays near L at idle and while driving, you could have low oil pressure or a gauge problem. A mechanic would check pressure with a mechanical gauge.
Normal for most engines is around 25-40 psi at idle and 30-60 psi when driving.
Low oil pressure at idle can be caused by an engine with worn rod or main bearings due to (usually) high mileage . This however does not mean the engine is still not serviceable as long as the oil pressure is low only at idle. The pressure should at minimum get into the normal range at anything above idle speed.Not much oil pressure is really necessary at LOW speed. At low speed, as long as there is oil getting to the bearings, even at low pressure, you are OK. In a high mileage engine the oil pressure is often low at idle simply because the oil pump is turning slowly and cannot maintain higher pressure between the larger than normal crankshaft and bearing clearances. As speed increases the pump turns faster and supplies more oil and the pressure should go higher. Low pressure as long as it is only at idle is not a problem. However at higher speeds the pressure should be in the normal range. Such a worn engine can benefit from higher viscosity (thicker) oil such as 20W-50 in above freezing weather and 10W-40 in winter. That will increase idle pressure and the thicker oil film maintains a better film between the worn parts
In normal condition, this telling you that the car has low oil level. Just check your oil deep stick when engine off at least 10 minutes to verify engine oil level. Top up oil if needed. I guess your car on low / minimum level just now. Otherwise, your oil sensor gets malfunction.
first check the oil level if its good then change the oil if you hav'nt done so all ready and add some LUCAS oil stablizer this may help alot if not then the oil pump is most likley going bad and needs to be replced before the engine lacks oil and cause the engine to seize.
I have a 99 blazer and ever since I have owned it, it reads lower in pressure when idling, but will go up too 40 while driving. This is normal for the vehicle. If the pressure gets real low, and stays low, it means its time for an oil change.
As long as the pressure goes up when you give it gas, it is fine.
Lifers will rattle if oil pressure is low. Have you screwed in an oil pressure guage to check. Should read about 20 psi at idle and 40-60psi above idle.
Causes are nemerous from low oil level to worn out engine. You dont mention mileage. Normally very good engines.