Oil Pressure Question

I have a 89 GT with approx 135000 miles on it. Engine runs great.
Doesn't smoke or anything, not even at startup. With the engine at
normal operating temp, the oil pressure gauge runs just a hair above the
half way point when I'm cruising along normally. And, drops to about
1/3 when idling. Does anyone know what the approx pressure is at the
half way point for this year and model? I'm assuming its around 30. I
wish Ford would have put the actual pressure reading on the tick marks.

Thanks

Byron

jonezzzman wrote in
@nlpi061.nbdc.sbc.com:

> I
> wish Ford would have put the actual pressure reading on the tick marks.
>

Those factory gauges are so notoriously inaccurate that it wouldn't matter
to begin with. Get yourself a mechanical gauge and stop guessing.