whats your oil pressure?

[chas52]

have recently installed a new vdo oil p guage. oil p is when hot running mobil 1 synthetic, 15-20 at idle and 35-40 on highway at 55 with car in od and lockup engaged. the higher the rpm the higher the oil p.
curious as to other cars. thanks

 

[gossamer]

30-35 p.s.i. hot idle and 60-65 p.s.i. cruising with Kendall 10/40 in sunny So-Cal :biggrin:

 

[Firechaser]

chas...if your engine has never been rebuilt, your pressure readings are completely normal....actually a tad better, some idle at 10lbs warm

 

[87granny]

chas...if your engine has never been rebuilt, your pressure readings are completely normal....actually a tad better, some idle at 10lbs warm

Your not kidding about that 10lbs and i have a VDO gauge that's a little off too scared the crap out of me when i first saw it

 

[Firechaser]

Yeah...it is scarry! My GN's original motor is a 10lb'er at idle...weird part, my TTA has awesome oil pressure (for stock) at 20-25 at hot idle and 45-50 cruising at 65 mph...weird :biggrin:

 

[Amelio]

yeah same here hot at idle is 8-10 psi but cruising in o.d at 2k rpms she stays around 30psi. I have been thinking of buying an oil pump kit and pop in a different spring I would really like to see 20psi hot at idle.

 

[driveshaft man]

yeah same here hot at idle is 8-10 psi but cruising in o.d at 2k rpms she stays around 30psi. I have been thinking of buying an oil pump kit and pop in a different spring I would really like to see 20psi hot at idle.

Don't get your hopes up.I found a NOS GM ft cover and done the oil pump rebuild/clearance mod from a really good(and humorous) post on this site.I used a new Melling HV oil pump and a shim kit from one of our preferred vendors here. I was able to change from 15W40 Delo (5-8psi hot idle) to 10W40 Castrol (8-10 psi hot idle), but not the 20 psi plus I was hoping for.This was on a 45k 86 GN that I belive is the original motor w/some older mods(K&N,chip and slightly larger injectors
(42#?),cat replacement pipe,2500 stall,maybe a slight cam,is all I have discovered) but I did stop an oil leak from the ft seal.
The only answer is wear at cam bearings/crank bearings from the car having seen some hard runs, but opinions here reflect Buick did not feel this motor needed a lot of oil pressure...10 # gain per 1000 rpm (?) so I just drive the sh*t out of it ....so far ,so good.

 

[Amelio]

...10 # gain per 1000 rpm (?) so I just drive the sh*t out of it ....so far ,so good.[/QUOTE]

I hear ya before I do that i am going to try the 20W-50 oil...I am currently running 10W30 I had 20W-50 in it over the winter but since it was really thick when cold I would get a lifter tick at start up. Now that it is hot I will go back to the thicker oil and see how it does.

I am not real concerned it raises more than 10psi per 1k rpms i would just like to see more at idle. It is all temperature in pretty hot weather it holds 10psi but when real hot it will go to 8.

 

[Little6pack]

80 psi Cold start up

15 to 20 Warmed up Idle with normal travel range up to 50 under increase

 

[scot w.]

80-90 psi on cold start up and right at 25-27 psi at idle when up to temp.

I don't move the car untill the temp is up, way too much oil pressure to start out driving while cold....



GNS

 

[turbo nasty]

Dont be scared of 10 psi oil temps when fully heat soaked or after WOT hit. The idiot oil light doesnt come on to around 5 psi. You think Buick came up with that number out of the blue?

Typical is around 20ish at idle but can be as low as ten in gear.

 

[chas52]

thanks for the info. mine has 5k on a total rebuild with 10w30 mobil1.
when cold the op is about 70+ after a couple mins the pressure settles down to 30-40. as rpms go up so does the op. had a problem with lifters clacking after 5 miles or highway driving but my mech checked the pressure relief valve and it must have been stuck as it runs fine now.

 

[Smokin-6]

Mine is at 55 cold and 20 at a hot idle, when I cruise 60 or so it is at 50.

But my guage is slow to rise on start up and while reving engine, that's freakin me out

 

[1quick6]

Mine is pretty much the same as everyone elses. 18-20psi hot idle and 50psi at 2100 rpm cruising. This is with 10w30 royal purple.

 

[channer]

80-90 psi on cold start up and right at 25-27 psi at idle when up to temp.

I don't move the car until the temp is up, way too much oil pressure to start out driving while cold....



GNS

x2... and about 40-50 psi when cruising around town using whatever synthetic is on sale & zddp!!! I also have a KB oil booster plate... so I don't if that actually increases oil pressure.

I always wondered... if I should wait the PSIs to go down before driving off.

 

[Just a Six??]

x2... and about 40-50 psi when cruising around town using whatever synthetic is on sale & zddp!!! I also have a KB oil booster plate... so I don't if that actually increases oil pressure.

I always wondered... if I should wait the PSIs to go down before driving off.

Just go Easy until warm. I satrt it & wait 30 secs & drive slow the first while just like all my other vehicles.

 

[Junior Samples]

I dont even know, and thats prolly a good thing..one less thing I have to stress about after all, its hard to turn up the radio when a gauge shows zero

 

[1987gndave]

80 cold start .....20/25 hot idle ..... 60 cruise .....80 when im on it :wink:

 

[87granny]

I dont even know, and thats prolly a good thing..one less thing I have to stress about after all, its hard to turn up the radio when a gauge shows zero

You'r better off i wish i didn't know either