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75 psi oil pressure

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Yoda
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I haven't been paying a lot of attention to my oil pressure of late, but it seems to me to be high now. Even when it was warm outside, during the first 10 minutes of operation, I'm consistently running 75 PSI... and I only recall it being closer to 65 before. When the <span style="text-decoration: underline">oil </span>truly warms up, I think it's at least 60 and at idle it may drop to 40.

I'm probably being picky (given the other end of the spectrum is bad).

I state all this because I remember it running at more typical pressures (dropping to 20 at hot idle). The engine is fairly fresh, and I'm not sure but this may have appeared after the head rebuild (just a few hundred miles ago). It's a 1275.

Doesn't seem like a pressure-relief issue because it does drop to 40 when hot... but this over 70 stuff is unnerving. Should I be concerned (except for springing leaks)? Duct tape? Don't worry, just be happy? Chill?
 
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