higher than average oil pressure

[MTF]

How much thinner do you think 5W-20 will get, its flows like water at 20 degrees out. LOL

 

[Badass69]

My understanding is that the 6.2L's oil pump rotory gear set is designed for high volume with the pressure calibrated to 50 psi.
Now I'm going by what a service tech quoted. If someone has info in writing please go ahead and post!
Generally you won't see much of a pressure change with high volume oil pumps.

Yeah no lol. The pressure relief will be set to something. .. more than 50 pounds I would hope but you never know. None the less your oil pressure at 600 rpm is vastly different than at 6000 rpm. High volume pumps are great at foaming oil and increasing oil temps. .. quit using them years ago especially after having said issues. Unless the factory design is particularly poor to the point of starvation adding more volume doesn't help much of anything. The volume the pump moves should be enough to keep things cool and lubricated and not cavitate the pump. Pressure of course is dependent on things like viscosity, bearing clearance and so on. One of these days I might toss a gauge on one of mine to see what they produce.

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[MTF]

I'm not saying there's no change but it's not like the the ones in the oil pans or a dry sump.
How this systems works is new to me and I never investigated.
Other then upgrading my oil gear set.

 

[Humvee21]

Did not know that the oil pressure gauge was fake. Always noticed that it did not change like the one on the Hummer but didn't know it was fake. Has anyone tried this? Ford Oil Pressure Gauge Fix

 

[Badass69]

The pump in the 6.2 is the same gerotor design GM uses in their LS's. Pressure variance is the same as any old oil pump from any truck I have ever driven. My 05 Sierra holds 40 psi at hot idle, 60 at cruise and pegs the guage above 80 at WOT. Depends on oil temp of course as it drops down to around 75 psi at over 5000 rpm hot. These engines like I said use the same pump design. It's why I like the 6.2 in the first place...... it shares a lot of similarities to an LS..... even if it is overhead cam.