Oil Pressure

[RamenPride]

I was running a Nordskog digital oil pressure gauge for a few years. At about 3000rpm it would read 60psi when warm and about 8-10psi at idle after I first installed it. It eventually started reading 58psi at 3000rpm after awhile and only 3-6psi at idle. So of course I panicked thinking my oil pressure was low, but the oil pressure idiot light never came on....

I recently installed an SPI electric oil pressure gauge. Not the greatest gauge in the world, it's kind of slow and you can't see the needle very well at night because it's not backlit. The thing is this gauge reads about 70psi at 3000rpm and about 17psi at idle, which is about what the oil pressure should be. This is using Castrol Syntec 10W-40, which I always use year round.

So my question is, which gauge is the accurate one? I would have just replaced the sender on the Nordskog gauge since it might have slowly died due to vibration, but the SPI gauge and sender were cheaper than just the sender.

 

[Defiant]

Until you spend about $200+ on an oil gauge, you won't know which one's "right" (or, least wrong).

Your numbers are fine, stop fixating on them I'd doubt that Nords gauge has a 2% accuracy rating, and you're still within that. The car's gonna wear out and break no matter what you do.

 

[R3dR]

I spent $20.00 and have a mechanical guage in my car that reads from the port right by the banjo bolt that feeds the turbo.
It is in the pod on top of the vent area

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[blcknspo0ln]

mechanical oil pres. gauge you're lucky that things doesn't leak on ya!

my experience on the other hand