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

oldcycler · 12-05-2006, 04:13 PM

Does anyone know the oil pressure specifications for the 5.3?

I have an 01 Suburban that runs at just a smidge below 50 psi at idle with the engine fully warmed up. About a year ago I bought a 06 Sierra and it runs just below 40 at idle when fully warmed up. Both vehicles have the same oil in them - Valvoline 5W 30. 38 or so psi seems a little low to me.

Could the oil pressures actually be the same and the guages are just reading different? Is 38 psi at idle too low?

Thanks.

turbochevy · 12-05-2006, 11:24 PM

i am sure there are some differences in the set up my 04 runs about 40-45 at idle and jumps up to 65 or so under WOT. I think your 06 is fine, would not worry about it too much.

12-05-2006, 04:13 PM	#1
oldcycler Registered User Join Date: Oct 2005 Location: Reno, Nevada Posts: 13	Oil Pressure Specifications Does anyone know the oil pressure specifications for the 5.3? I have an 01 Suburban that runs at just a smidge below 50 psi at idle with the engine fully warmed up. About a year ago I bought a 06 Sierra and it runs just below 40 at idle when fully warmed up. Both vehicles have the same oil in them - Valvoline 5W 30. 38 or so psi seems a little low to me. Could the oil pressures actually be the same and the guages are just reading different? Is 38 psi at idle too low? Thanks.

12-05-2006, 11:24 PM	#2
turbochevy Senior Member Join Date: Nov 2006 Location: Chatsworth, So Cal! Posts: 226	Re: Oil Pressure Specifications i am sure there are some differences in the set up my 04 runs about 40-45 at idle and jumps up to 65 or so under WOT. I think your 06 is fine, would not worry about it too much. __________________ 1970 Chevy C 10 SWB



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