Oil Pressure gauge, possible problem?

[Primera90]

Just wondering where everyone's oil pressure gauge sits.

First started - 4kg/cm2
Engine warmed up and cruising - 1 to 2.5kg/cm2
Engine warmed up and idling - 0.2-0.8kg/cm2!!!

If I rev the motor when warm and it's just been idling, it goes up to over 1kg/cm2. Seems very low to me, but the oil light never comes on (except just before the car is started). The motor always seems to run fine.

Any ideas?

[primera man]

Youre oil pressure at normal operating temperature at idle should be no less than 0.80kg/cm.
At 3000RPM it should be 4.5kg/cm.

Have you changed oil/filter recently ???.....shitty old oil and filter wont help if its clogged up with shit.

Use a really good brand of oil like Castrol/Mobil 1(no cheap stuff) and use a SAE 10W/40 to 20W/50.

Hope this helps you out

Primera Man

[G-Forces]

Changing oil is a good idea. I've heard that when oil starts getting old it begins to break down and that would cause a pressure drop. I don't know the specifics but it's a good place to start.

[gjosuem]

I have a similar situation, I have about ~60-70psi when I startup and after it is warmed up and during constant running (anything over 15mph) its about 40-50psi.

At one point it had gotten so bad that during idle it would drop to 15psi and the check engine light would come on, so I had to keep my foot on the gass. So I ran a engine flush (amsoil), and it got better 40~50 psi. I am wondering if its the pump, but i don't have the time to check it out, nor can't to take it to a shop (since its my only vehicle).

[jonian]

Originally Posted by Primera90

Just wondering where everyone's oil pressure gauge sits.

First started - 4kg/cm2
Engine warmed up and cruising - 1 to 2.5kg/cm2
Engine warmed up and idling - 0.2-0.8kg/cm2!!!

If I rev the motor when warm and it's just been idling, it goes up to over 1kg/cm2. Seems very low to me, but the oil light never comes on (except just before the car is started). The motor always seems to run fine.

Any ideas?

Hey, I have a Primera eGT -91 and I have exact the same problem! But I have tested Mobil 1, 10W/40 Very High Performance oil. But without any result! Please help me, this only happens when the engine goes hot, when I start it when its cold I have 4 bars Pressure. But then it drops!
Please,anyone?