Oil pressure

[MoparBrown812]

I have a 1974 Plymouth duster with the 360. When it’s at idle the oil pressure is around 15-17 psi. I’ve had some people say that’s to low and then I’ve read some post on here saying that’s normal. So what’s your guys opinion on it. Thanks.

 

[RustyRatRod]

What is it going down the road at about 2000 RPM? What you have at idle is plenty as long as it has a substantial amount at RPM.

 

[MoparBrown812]

At 2000 RPM it’s around 50psi

 

[RustyRatRod]

At 2000 RPM it’s around 50psi

That's normal. Worry about other stuff. lol

 

[middleagecrisis]

The 318 in my Duster does the same thing. If I’m sitting at a “long” light, I’ll put the trans in neutral. That brings up the oil pressure and helps keep the engine a little cooler with this small increase in RPM.

 

[RustyRatRod]

To give some perspective, the factory oil pressure switch cuts the oil light on at "around" 3 PSI. Trust me. You're good. lol

 

[jbc426]

I had a sudden oil pressure drop in a Magnum I have with pressures like you're describing. Turns out there was a crack on the threads of the oil pump pick-up tube where it threads into the pump. It was only a few years old too.

 

[Mike69cuda]

Folks used to say about 10 psi per 1000 rpm is good.

 

[Desoto291hemi]

At a dead idle at operating temperature,,,that is perfectly fine .
Especially an old street car .

As long as it comes right back up when you hit the throttle,,,there is nothing wrong with it .
And the pressure you said you have at 2000 is very good .

Tommy

 

[RustyRatRod]

Folks used to say about 10 psi per 1000 rpm is good.

That still holds true today!

 

[dogbreath]

thicker oil ?

 

[mygasser]

thicker oil ?

i wondered what oil he was using, lol.