Oil pressure varying….concerned

[pacofortacos]

Thank Goodness they haven’t started selling
gasoline in quart cans …

yet

I see FCA Stellantis RAM owner manuals are recommending 0/20 and 0/30 for most 5.7 Hemi’s
I’ve been thinking of changing over to Red Line just to try it.
I think I might try Rotel too
I used to see chevy and ford diesels come in smoking clouds and leave purring like kittens after using Delco back in the day but Standard Oil was still Standard oil then too.
I’ve been using 5/20 Royal Purple for a few years now with no problems,
I see the Oil Pressure gage fluctuate but that’s from engine temperature changing the oil viscosity
metal expands when heated and the tolerance between the bearings decreases, the main job of the oil is to move the heat.
In the morning it’s 55 psi after the engine heats up it can go as low as 28 psi.
Does anyone who is concerned with their engine’s oil pressure know the location of the oil pressure gauge?

The Recline 0-30 isn't a very thick oil cold that's for sure.

 

[JHoward]

Wish my psi was like yours. I hear so much good stuff about redline. Are you using the regular api oil or the high performance??

This is what I'm using. The ester-based High Performance lubricant 5W/30. I will continue to use it in my HEMI for as long as it is made and sold.

JHoward

 

[zogg]

Got it. Thanks.

 

[MontanaHandyman]

Wish my psi was like yours. I hear so much good stuff about redline. Are you using the regular api oil or the high performance??

I just put in the RL 5w30 (running an RP 20-820 filter) and my oil pressure increased 5 psi at hot idle and at speed.

 

[zogg]

Good to know. So what are your psi numbers??

 

[MontanaHandyman]

Good to know. So what are your psi numbers??

About 35 hot idle, and 54-59 on the highway depending on speed. During winter I put in the stock 203 thermostat so the oil pressure is a bit lower when the temps are up there. Come spring I swap that out for the 179 stat and with the engine running cooler the hot idle psi will be around 40.

 

[JHoward]

About 35 hot idle, and 54-59 on the highway depending on speed. During winter I put in the stock 203 thermostat so the oil pressure is a bit lower when the temps are up there. Come spring I swap that out for the 179 stat and with the engine running cooler the hot idle psi will be around 40.

That is about the same psi numbers my HEMI had when I made the change to Red Line 5W/30 with exception on hot idle (48psi). I use a Purolator BOSS PBL 25651 oil filter that is the same size as the Royal Purple 20-820.

I'm still on the fence going to the Royal Purple oil filter even though the filter media (spun mico glass) is superior compared to the Purolator BOSS (full synthetic media) because of the plastic bypass valve spring loaded thingy. The Purolator BOSS is all metal. And that is jm2¢.

JHoward

 

[JHoward]

Good to know. So what are your psi numbers??

If you have some spare time, read the synthetic oil and oil filter threads. There are all kinds of good info to review and about similar things that has been discussed here in your post. Alot of knowledgeable folks there.

Be good and happy motoring!

JHoward

 

[Dusty]

Well, the Honda Ridgeline doesn't have the HEMI engine and isn't prone to having lifter/cam issues?


JHoward

Perhaps a definition of "prone" is in order, but Honda, like other manufacturers, is not exempt from having camshaft issues. Although I only know personally of two of these, the Honda bulletin addresses a known problem on some engines:

Warranty Extension: 2017-18 CR-V: DTC P0300, P0301, P0302, P0303, P0304, or P0172; Whirling Noise from Engine (nhtsa.gov)

Regards,
Dusty
2019 Ram 1500 Billet Silver Laramie Quad Cab 2WD, 5.7 Hemi, 8HP75, 3.21 axle, 33 gallon fuel tank, factory dual exhaust, 18” wheels. Build date: 03 June 2018. Now at: 064994 miles.

 

[zogg]

I would guess that most every manufacturer has issues now and again. My son-in- law bought a used 2010 silverado with 46,000 miles. The cam and lifters went out before 60,000…but at least the drive train warranty covered it.