What's your oil pressure reading?

[MrGT5oh]

Hey guys,

I'm curious as to what your oil pressure readings at start up, while driving and at idle.

Mine is generally around 80 PSI while driving but it has pegged the meter at 100 PSI under acceleration and will go down to 20ish when warmed up at idle.

80 PSI seems high to me.

 

[steveespo]

My 5.0 runs 29 at warm idle, 97 cold at 3000 rpm max 80 @ 3000 warm and 55 at 2100 rpm cruising at 65 mph. I have Auto meter ultralite electric gauge.
Steve

 

[Polaristxguy]

Hey guys,

I'm curious as to what your oil pressure readings at start up, while driving and at idle.

Mine is generally around 80 PSI while driving but it has pegged the meter at 100 PSI under acceleration and will go down to 20ish when warmed up at idle.

80 PSI seems high to me.

Spot on! I forgot what article I read but Ford said that was normal pressure. Those are the exact numbers I see on my LS.

 

[MrGT5oh]

Thanks!

I guess I won't worry about it.

 

[Whammer]

I was concerned about the same thing. Upon start up my LS is 80 and when under throttle it goes to 100. I've been cautious to drive it easily until the car warms up and the pressure drops to about 80 under throttle.

 

[MrGT5oh]

It's good to know that it is normal.

 

[steveespo]

Rule of thumb is that you want 10 psi/1000 rpm hot oil pressure. So at 7500 rpm 75 psi should be minimum. Wonder what the oil pump max relief pressure spring is set to, probably 100 psi.
Steve