That doesn't make sense at all at 0-1 PSI with the engine idling fine. I think the lowest was 12 PSI as I get in 1st gear at low RPM. I'm sure you'll be hearing all sorts of nasty mechanical noise if oil pressure dipped that low. IIRC, isn't there a warning light on the dash for that? I don't think it's a low oil level indicator.
Cold start, my gauge shows 90 PSI. Then hovers to around 60. It'll be around 40 PSI at 3k RPM or so. That's my gauge indication, though.
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