Factory Oil Pressure Gauge - The 1947 - Present Chevrolet & GMC Truck Message Board Network

1969 GMC · 04-16-2003, 01:49 AM

on my oil press. gauge, what should it be reading for an engine to be healthy? I know it doesn't have numbers, just the 4 squares. I thought my truck registered higher before, now it drops just below 1/2 when idling and is about 3/4 or more when I'm driving it . It seems to move along with how many rpm's I am running. I checked my oil level and its ok. What else could be the culprit? thanks

Duallie · 04-16-2003, 02:40 AM

That's perfect oil pressure. Full scale is 60 psi, halfway is 30.

da-burb · 04-16-2003, 09:58 AM

I was always told 10psi per 1000rpms is safe for a chevy engine. And the guage is 60psi like Duallie mentioned.

72moneypit · 04-16-2003, 10:27 AM

Mine pegs out high when at fast idle, but settles in at about the midpoint during normal idle. I used to be concerned that the pressure was too high, but whenever I've brought it up to others, I'm told there's nothing to worry about.

Rod · 04-16-2003, 10:47 AM

If you take enough dashes apart there are truck dashes that have 80 lbs oil pressure gages also. I find those in the c40-c50 range often.

1969 GMC · 04-16-2003, 03:15 PM

thanks guys I guess I can rest easy now

04-16-2003, 01:49 AM	#1
1969 GMC Registered User Join Date: Feb 2003 Location: The Rubber City Posts: 5,498	Factory Oil Pressure Gauge on my oil press. gauge, what should it be reading for an engine to be healthy? I know it doesn't have numbers, just the 4 squares. I thought my truck registered higher before, now it drops just below 1/2 when idling and is about 3/4 or more when I'm driving it . It seems to move along with how many rpm's I am running. I checked my oil level and its ok. What else could be the culprit? thanks __________________ 1969 GMC K2500 1996 Honda Accord 2007 Kawasaki KLR 650

04-16-2003, 02:40 AM	#2
Duallie Registered User Join Date: Feb 2001 Location: Nikiski, Alaska Posts: 477	That's perfect oil pressure. Full scale is 60 psi, halfway is 30. __________________ Just as if I knew what I was doin'

04-16-2003, 09:58 AM	#3
da-burb "Ochre Ogre" Join Date: Apr 2000 Location: Springfield, MN Posts: 3,558	I was always told 10psi per 1000rpms is safe for a chevy engine. And the guage is 60psi like Duallie mentioned. __________________ Bowtie Truck Stop Inc. Mid-West GM Truck Restoration Parts Supplier Your Key Parts, Auto Metal Direct, Dynacorn, and Goodmark dealer. like us @ www.facebook.com/BowtieTruckStop 1971 C-10 Suburban (Ochre) 1971 K-10 Suburban (Ochre) 1972 C-10 Suburban (Ochre) 1972 K-20 Suburban (Yellow- that just aint right!) Springfield, Minnesota 56087

04-16-2003, 10:27 AM	#4
72moneypit Registered User Join Date: Jan 2003 Location: Mesa, Arizona Posts: 125	Mine pegs out high when at fast idle, but settles in at about the midpoint during normal idle. I used to be concerned that the pressure was too high, but whenever I've brought it up to others, I'm told there's nothing to worry about. __________________ Paul 72 Cheyenne Super Custom Camper greenaz@hotmail.com

04-16-2003, 10:47 AM	#5
Rod Join Date: Dec 1999 Location: Eastern - Manitoba Canada, Winnipeg Posts: 4,369	If you take enough dashes apart there are truck dashes that have 80 lbs oil pressure gages also. I find those in the c40-c50 range often. __________________ Senior active founding member. 70 3/4 ton GMC Suburban 4x4 250/4 spd. 71 1/2 ton Suburban Chevy 4x4, 350/350 72 Chev 1 ton tow truck 402BB w/Holmes 440 wrecker on propane 2005 FLSTSCI Harley Springer 85 FXSB Harley Lowrider 72 Triumph 650 Bonneville 5spd "Poor people don't have hobbies" Quote from wife.

04-16-2003, 03:15 PM	#6
1969 GMC Registered User Join Date: Feb 2003 Location: The Rubber City Posts: 5,498	thanks guys I guess I can rest easy now __________________ 1969 GMC K2500 1996 Honda Accord 2007 Kawasaki KLR 650



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