Oil and filter recommendations

[OR VietVet]

I think the previous owner had oil pump or pickup seal work done before I bought it because at warm idle I am at 50 psi and higher rpm is at at least 60 psi.

 

[BG1988]

I get about 50 cold, 40 warm with driving and 30 warm at idle.

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I would think there is something wrong with my engine if it was that low



70-75PSI cold (seen as high as 80PSI) 55-60PSI warm driving 45-50PSI idle....

 

[Meccanoble]

I would think there is something wrong with my engine if it was that low



70-75PSI cold (seen as high as 80PSI) 55-60PSI warm driving 45-50PSI idle....

My car sits at 35 idle and 40 regular driving. If I go hard, it might touch 50-60. I think a few confirmed these numbers on the TBSS while the TBS normally had an average higher pressure.

 

[Nap73]

I get about 50 cold, 40 warm with driving and 30 warm at idle.

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40 warm while driving

Slightly over 30 warm at idle

I’ll see about a cold start tomorrow. Don’t really pay attention.


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[Nap73]

I would think there is something wrong with my engine if it was that low



70-75PSI cold (seen as high as 80PSI) 55-60PSI warm driving 45-50PSI idle....

And you’ve got the same truck with the 6.0 ?




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[Nap73]

I think the previous owner had oil pump or pickup seal work done before I bought it because at warm idle I am at 50 psi and higher rpm is at at least 60 psi.

I would think so. I haven’t really come across anyone with your numbers. And I ask around out of curiosity.


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[BG1988]

And you’ve got the same truck with the 6.0 ?




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yeah 6.0L it has a specialty oil pump though (similar as the LT1 corvette)

his is a "fixed" pump

this is a Variable-displacement oil pump.

 

[DaRosa218]

I would think there is something wrong with my engine if it was that low



70-75PSI cold (seen as high as 80PSI) 55-60PSI warm driving 45-50PSI idle....

What 6.0L do you have? Every NNBS I've owned had just about the same numbers listed.

 

[DaRosa218]

Found this on another forum. It appears my oil pressure is on par for an LY6 6.0L:

For oil pressure it depends what engine you have for the specs engine hot

L76
1,000 RPM 24psi min.
2,000 RPM 35psi min.
3,000 RPM 38psi min.

*LY6*
1,000 RPM 22psi min.
2,000 RPM 30psi min.
3,000 RPM 33psi min.

For both engines the AFM relief valve oil pressure - as measured at oil sensor location:
Max. 55-75 psi

 

[BG1988]

What 6.0L do you have? Every NNBS I've owned had just about the same numbers listed.

it has a

Found this on another forum. It appears my oil pressure is on par for an LY6 6.0L:

For oil pressure it depends what engine you have for the specs engine hot

L76
1,000 RPM 24psi min.
2,000 RPM 35psi min.
3,000 RPM 38psi min.

*LY6*
1,000 RPM 22psi min.
2,000 RPM 30psi min.
3,000 RPM 33psi min.

For both engines the AFM relief valve oil pressure - as measured at oil sensor location:
Max. 55-75 psi

GM went to the future and came back with the variable oil pumps ..


If you google viable displacement oil pumps it will only refer back to 2012 as being new tech.

it's a high performance oil pump for the Lxx engine

it's a frankenstein LS2 based engine RPO LFA and LZ1


It’s available under p/n 12625823 for the LFA and p/n 12623423 for the LZ1

apparently it saves 2 HP from being wasted


HP is
332 hp @ 5100 RPM(248 kW) 367 lb⋅ft (498 N⋅m)4100 RPM Combined output is 379HP/ 472 lb-ft..

some people might consider this a VERY HIGH OUTPUT engine lol

VHO 6.0L


it has a 4 or 5" aluminium drive shaft it's big though i'll measure it later