Oil Pressure....Should I be worried?

[2DR4EVR]

I was just looking for a second opinion on something.......I just recently re powered with a stock Vortec. Put a few thousand miles on her and things are starting to settle in.

One concern I have is that my oil pressure is freakishly high......at least way higher than it was before the re power. I know its new engine and tight but I just want to be sure.

first start in the morning cold (Florida Cold) its sitting around 72-76 PSI. I have no doubt that if I applied a load to it it would peg at 80psi.

Once up to operating temp a steady 60-64 psi.

Idle 40 psi straight up.


This is certainly higher than it ever has been in the 18 or 19 years I've had this truck.


So is that an acceptable PSI range or is something off by chance?

Cheers

 

[Gzes]

Low pressure is what you want to be afraid of more. It should be fine. I had no oil pressure at stop before I rebuilt my 350 and it ran fine. Right now I run higher then half

 

[orange57]

Shouldn't there be a bypass valve to prevent oil pressure from getting to high? I run around 55ish or so at cold start, and after it's all warmed up it stays around 25ish or so.

I have another question about oil pressure. Mine generally takes a couple of seconds upon starting to get up to pressure. Do you see the same? I run a Mobil 1 Oil Filter and thought it would have an anti-drainback valve. Maybe not though.

 

[Gzes]

Well it should be normal since the oil is down when not on and then starts moving around building pressure mine goes up to pressure quick but I also have about 10k miles on the new motor. I run synthetic in quaker state and dont recall what filters name is. It's the orange one lol. No idea on the anti drain back valve

 

[Ceejkay]

my new motor stays at about 55psi. i have about 4500 miles on it and its done it ever since i put it in

 

[97Tahoe2d4x]

Try verifying the oil pressure by plumbing in a mechanical pressure gauge, make sure that your in dash pressure gauge is not lying to you.

My 97 with 257K now only get 40 to 50 psi driving around and 20 or so idling in gear. Used to be 60 and 40 in idle when I got the truck long time ago......getting old.

 

[retorq]

Probably not broken in fully, there should be a bypass to prevent that high of a pressure ... when I lived in New England I switched oils for the winter to a thinner blend.

 

[2DR4EVR]

I hoping on your theory retorq. Since I underwent this I have a slew of problems that I wish on no man. My gas mileage has been in the gutter since the swap to.

Picked up a scan gauge which I'm really digging to monitor everything.....and its all within parameters. It just bothers me a little when I see that Oil press gauge that high. I'm worried to load it up if I ever had to.

the gauge could be tweaked a little. My fuel gauge monotors on a whole new scale now. Before it would go way past F and really go down once below half. Now, it stops right on F and I run it into the red....which is when I would stop and fill up and it would take a full tank. Now at the same point it only takes 21-23 gallons. So i know there's 5 still floating in there. Got to get used to it.

 

[retorq]

I know the feeling, when I replaced my gauges I put the fuel needle a little below where it was supposed to go cause I had that same "beyond full" issue and hated it. Now when its in the middle of the red it's starts stalling at hard stops and big turns so I know it's time to pull in and get some gas lol.

 

[livingez_123]

I wouldn't worry about your current pressures. My Ls with 130k on it still hit's 70 on cold start and idles about 35-40. Highway speeds it's about 60.