Just did a conpression test as I'm trying to nail down pil consumption issues.

Results for all cylinders were between 144-150psi on a warm engine.

I know this is low but technically within spec (above 142 and +-14 psi differential. Engine runs just fine (feels down on power, but it's the only g35 I've ever driven and its always been like this since i bought it a year ago so idk). Should I be concerned about rings or move onto looking into another issue?

Note: I tested each cylinder with the rest of the spark plugs in, I don't know if that makes a huge difference or not.

 

Should be fine. Those numbers are expected for a 20 year old car.