Oil Pressure 6.0

Texas Sandman · October 5, 2017

The gauge is no where even close to actual psi, you would need to plug into the OB port to see actual psi and I assure you it is fine.

I do find a quality/larger oil filter will allow higher psi across the board.

What quality/larger oil filter do you recommend?

SMiller · October 5, 2017

What quality/larger oil filter do you recommend?

Wix 57045/Napa Gold 7045

crankman · October 5, 2017

Interesting I use a NAPA 7060. I've never looked at the 7045, might have check that out.

SMiller · October 5, 2017

Interesting I use a NAPA 7060. I've never looked at the 7045, might have check that out.

Longer, more filter media win/win.

SierraHD17 · October 5, 2017

Gm specs the stumpy filter for no reason on the LS's and always has right since 99 in the trucks... for no good reason lol. If nothing else the bigger one has more media and is easier to get a hand on while installing lol.

revrnd · October 6, 2017

Gm specs the stumpy filter for no reason on the LS's and always has right since 99 in the trucks... for no good reason lol. If nothing else the bigger one has more media and is easier to get a hand on while installing lol.

Actually the early GMT800s had a longer filter (my 2000 2500 which I ordered new, had the long filter). My '04 2500HD had the short baby food jar sized filter. Checking the WIX lookup, '03 was the year the short filter was intro'd. IIRC, AC Delco obsoleted 3 or 4 similar filters & replaced them w/ the short filter. Now the 5.3s are back using a longer filter (go figure).

SierraHD17 · October 6, 2017

Yeah actually you are right.... my 2000 had the longer one from the start ( bought it new). It also still had an underhood lamp, lights that did something in the cab..... little touches. Cost savings measure maybe because it still worked within their oil change algorithm. The longer filter is coming with direct injection likely to do with larger oil pans, fuel dilution and as along as possible drain intervals. Even my Impala's 3.6 specs the long filter..... it's nice because of the multiple vehicles I own I only need 2 models of filter ( amsoil EAo17 and EAo64) and 5W30 oil lol.

revrnd · October 6, 2017

It also still had an underhood lamp, lights that did something in the cab..... little touches.

SierraHD17 · October 6, 2017

After a good highway run of a couple hours I am sub 25 pounds at idle. I really need to throw the manual gauge on and see lol.

gmcleer · October 7, 2017

Same here, once hot its just above the 20 mark at idle.

sdeeter19555 · October 7, 2017

Same here, once hot its just above the 20 mark at idle.

With 10w30 Mobil 1 (which should not make any difference from a 5w30 Mobil 1), I hot idle at 26 psi based on the signal being feed to the ECM which my Insight reads...120k miles, oil was changed probably 2000 miles ago.

Minor variances could be from sending unit differences, miles on the engine, and where the oil is in its lifespan.

Sent from my SAMSUNG-SM-G900A using Tapatalk

4x4Pete · October 8, 2017

I doubt a generic pressure gauge would be more accurate than the sending unit. If it actually did read higher or lower and cast doubt would you believe the cheap gauge or the sending unit?

SierraHD17 · October 8, 2017

I doubt a generic pressure gauge would be more accurate than the sending unit. If it actually did read higher or lower and cast doubt would you believe the cheap gauge or the sending unit?

That's why you don't use cheap gauges. My stuff is calibrated annually and are thousands to purchase plus a couple hundred annually to maintain certification. It's part of what I do for a living and is the cost of doing business. I guarantee what they read are as close to exact as you will get.

Now... you go buy a 29.95 special at AutoZone and expect it to be accurate? Well of course it will not be... not to mention not have enough resolution to even be worth looking at. Probably have a stated accuracy of +/- 5 psig lol.

That would also be about how accurate the factory junk gm uses for transducers and dash guages would be lol.

You also need a way to hook to the engine and LS's are a pain in the ass for that. I have the Kent Moore checking tool which is a spin on replacement for your oil filter that has an npt port you can connect too. You need 2 styles how as the threads for the filters changed back in 2006. Otherwise you have to pull a block plug and try and get a fitting for the block.

Doing this isn't something the average Joe is ever going to bother with lol.

4x4Pete · October 8, 2017

That's why you don't use cheap gauges. My stuff is calibrated annually and are thousands to purchase plus a couple hundred annually to maintain certification. It's part of what I do for a living and is the cost of doing business. I guarantee what they read are as close to exact as you will get.

Now... you go buy a 29.95 special at AutoZone and expect it to be accurate? Well of course it will not be... not to mention not have enough resolution to even be worth looking at. Probably have a stated accuracy of +/- 5 psig lol.

That would also be about how accurate the factory junk gm uses for transducers and dash guages would be lol.

You also need a way to hook to the engine and LS's are a pain in the ass for that. I have the Kent Moore checking tool which is a spin on replacement for your oil filter that has an npt port you can connect too. You need 2 styles how as the threads for the filters changed back in 2006. Otherwise you have to pull a block plug and try and get a fitting for the block.

Doing this isn't something the average Joe is ever going to bother with lol.

This is exactly what I mean. Monitoring oil pressure is really important but not so much as to need ultra expensive calibrated equipment. I doubt the local GM or any auto repair shop would have equipment like this either. To check accuracy of the sending unit a cheap gauge would be close enough. You either have it or you dont. Are you going to rebuild an otherwise perfectly operating engine because the oil pressure is a few pounds low? Most people should spend more time checking tire pressures rather than worrying about oil pressure. Lol.

SierraHD17 · October 8, 2017

No but it's a good gauge of health is all and I am curious for my own doing. When I next change oil in my 17 and my miled out 05 I am going to compare them... pretty sure the 05 will have more pressure across the board than the 17 does. Why? Who knows.. If they are all low like mine it's for a reason... something has more clearance than it used too.