Question on Oil Pressure - The 1947 - Present Chevrolet & GMC Truck Message Board Network

crawdad · 11-14-2005, 12:26 AM

What would be a good average oil pressure reading, both at idle and at speed, on a 305 engine at normal operating temperature?

jermasaurus · 11-14-2005, 12:44 AM

30-45ish? I have heard about 10psi for every 1000rpm is safe.
-Jeremy

**Captkaos** · 11-14-2005, 03:41 PM

In general 15-20 at idle and 10 for every 1000, so 45-50 at WOT.

crawdad · 11-14-2005, 04:29 PM

Thanks very much. I was afraid that the pressure on my truck was low, but it appears to be normal. Thanks for your help.

11-14-2005, 12:26 AM	#1
crawdad Senior Member Join Date: Sep 2004 Location: Georgia Posts: 614	Question on Oil Pressure What would be a good average oil pressure reading, both at idle and at speed, on a 305 engine at normal operating temperature? __________________ 2012 Silverado LT 1500, 5.3, 6 speed auto '86 SWB C-10 Silverado

11-14-2005, 12:44 AM	#2
jermasaurus Registered User Join Date: Dec 2004 Location: New Lenox, IL Posts: 442	Re: Question on Oil Pressure 30-45ish? I have heard about 10psi for every 1000rpm is safe. -Jeremy

11-14-2005, 03:41 PM	#3
Captkaos www.73-87chevytrucks.com Join Date: Dec 1999 Location: Birmingham, AL Posts: 6,935	Re: Question on Oil Pressure In general 15-20 at idle and 10 for every 1000, so 45-50 at WOT. __________________ Chris Lucas 1973 Chevy C-10 1978 GMC Jimmy (2WD) - SOLD 1987 R10 twin turbo LS 1991 R3500 SRW CrewCab 1985 K5 diesel swapped project 1989 K5 2WD conversion w/ Vette susp Project Captkaos Customs 73-87chevytrucks.com

11-14-2005, 04:29 PM	#4
crawdad Senior Member Join Date: Sep 2004 Location: Georgia Posts: 614	Re: Question on Oil Pressure Thanks very much. I was afraid that the pressure on my truck was low, but it appears to be normal. Thanks for your help. __________________ 2012 Silverado LT 1500, 5.3, 6 speed auto '86 SWB C-10 Silverado



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