High Oil Pressure?

[Luke]

The oil PSI on my boat seems to run pretty high. Is this anything I need to be concerned with or look into further? It has always run high since I got the boat. Typically my guage reads right around 65 PSI. This season it seems to be running around 72 PSI. The boat seems to run fine, I just wanted to make sure I wasn’t ignoring a potentially serious issue.

Thanks

[nms1991]

what weight oil are you using and when is it reading high?

[Luke]

SAE 15W-40

Reads high all the time, there is very little change. Sometimes it will drop like 1 PSI after it has been running for a few minutes, but never really fluctuates more than +-2 PSI.

[wburg64]

Rule of trhumg, at least 10lbs of pressure for every thousand RPM, IE, 5000 at least 50 lbs.

[Luke]

If that's the case I'm WAY over. My typical RPMs are right around 4000. And the PSI doesn't seem to change if I slow down or speed up...

[wburg64]

No need to panic at LEAST, you should have 10 lbs per thousand rpm.

[Rick]

Is the sender original? I think I'd replace it. It's only about 20.00 and maybe going bad.

[Luke]

Yeah, it's the original, my boat is only a 2003.

Thanks for the info. I'll have to check the sender unit.

[GC]

If you are going to check the sender, try checking the oil pressure with a mechanical gauge so you know what the "real" pressure is.

[tryan]

i would agree on comparing the dash gauge to a mechanical gage.

you might just have a very good motor.