Random question about my 300zx.

[SkateOrDie]

I know it's kind of dumbb question but I have a 300zx NA , but why does below my speedometer it goes up to 20 psi once it warms up? I thought psi was only for turbo cars?

[harrypotter]

What gauge is it?

PSI is pounds per square inch, it indicates pressure of any fluid or gas/air. So it could be oil pressure or something like that.

[Darren]

best to take a picture and show it up here so someone can see and give you a good answer

[SkateOrDie]

Well I know every 300zx , NA or turbo has a PSI gauge. I was just tripping out cause I thought that it only goes up when it's turboed. But il try and post up the picture with the gauge at 20psi so maybe you guys can have a hint what I'm talking about (:

[datpurpledrank]

It's an oil gauge. The boost gauge is read in differently and boost on that stock should be 14 so it doesn't show past that. Just do your research on that car. Had one and it robbed me of every dime I had

[SkateOrDie]

Yeah I know, it's hard to maintain a Z I'm still working on mine! How'd it Robb you of your money?

[dantheman300z]

Ya it's an oil pressure gauge. It fluctuates during the RPM range. If it is acting really weird then it would be the sending unit going out.