what is the average reading of a normal oil pressure gauge on any car

2003 CHEVROLET EXPRESS
100,000 MILES
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DT2911
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example the gauge is 0 to 100 psi what is average in middle 40 or 60psi
Mar 17, 2012 at 9:58 PM
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RASMATAZ
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At idle should 10-12psi and at 2K rpm 40 and plus
Mar 17, 2012 at 10:00 PM