1991 Chevy S-10 oil presure

1991 CHEVROLET S-10
156,000 MILES • 6 CYL • 4WD • AUTOMATIC
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EAGLESCOUT2004
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  • 1 POST
when my truck is cold the oil pressure is at or above 40 psi but when the truck reaches 200 deg the oil pressure drops around 10-15 psi. what could be wrong?
Sep 13, 2009 at 4:21 PM
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RASMATAZ
  • ✓Experienced Mechanic
  • 75,988 POSTS
I don't see any problem here at idle that pressure is okay remember the higher the rpm the higher the pressure the oil pump is turning faster-Might want to change the oil/filter.
Sep 13, 2009 at 4:37 PM
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