Hey guys, i looked around but couldn't find any information on this, but my 2004 350z Performance (186,500 MI) seems like it has higher oil pressure than what other people are reporting as normal. I have seen some videos about it being stuck at 120 psi but that's not my issue.

I read that averages for oil pressure are:
10 during idle
30-35 during moderate acceleration and/or cruising
60-65 during more aggressive acceleration

It was 55 Fahrenheit Today and when I started her up she went right to 90-ish
After the cold start it will slowly sink to 60
under normal load (2000-4000rpms) it sometimes reaches 120
and when I'm really pushing her, she reaches 120 and goes a little over.

I might just be tripping because I haven't driven the car that often over the past year.

To my knowledge none of my mods should affect this:
Tein lowering springs and coil-over kit
Nismo intake with a 4" Filter on it
Straight piped
body kit **** and subs
Oil change less than 500 miles ago but I think its been doing this for a while, Perhaps its because its cold? is this even something to worry about?

 

None of your listed mods should affect oil pressure. Oil will get thicker when it's cold outside, and viscosity will thin out as the engine and/or outside temps get warmer. The factory gauge can be finicky, so unless oil pressure has fluctuated wildly, I wouldn't worry too much.

 

So I had the car idle for about 2 hours last night and the pressure gauge only went as low as a few mm below 90psi. sometimes it would randomly fluctuate but only a few mm. I don't know if its bad but hey its 17 years old so I'm gonna replace the sensor anyway. we'll see what happens.

 

A picture of your car with the body kit might help us