Oil Pressure

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06-04-2009, 07:32 PM

SuperHoss

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Oil Pressure

What is the oil pressure for a 5.0 from a '98 Explorer when at operating temp?

06-04-2009, 08:09 PM

SHADOWRIDER

Join Date: May 2009

Location: CA

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It varies depending upon RPM and oil viscosity. Higher oil pressure means more resistance to oil flow - so higher is not necessarily better.

06-04-2009, 08:33 PM

SuperHoss

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With the recommended 5W-30 at 1700 RPMs. I'm asking what the NORMAL oil pressure is for a '98 Explorer with a 5.0 at cruising speed and operating temp with the factory recommended weight oil.

06-05-2009, 05:54 AM

dagamore

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Location: K-town RP Germany

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normally the rule of thumb for engine builders is to get 10psi of pressure per 1000 rpm at load/normal operational temp (212F normally). If you are running the right oil for your motor (not always what the manual calls for) if you are getting anything from 8-15psi per 1krpms i would not worry about it. Also make sure your oil gauge is working right.

06-05-2009, 09:56 AM

ahittz24

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Join Date: Dec 2006

Location: South Carolina

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40-60 psi at 2k rpm is the ford spec at opperating temp (190-210 F) with specified oil grade.

The 10 psi per 1000 rpm rule no longer applies in today's world of engines, thats old school muscle car verbage.

06-05-2009, 12:49 PM

dagamore

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Location: K-town RP Germany

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ahh ok that make sence, i got the 10psi per 1k out of an old spec book on building an FE motor. Not too suprised that they have gotten better oiling ideas in the newer motors.