Oil pressure and RPM

roadsession · 11-03-2009, 12:36 PM

Ok sorry for the newb question, but I am coming from a BMW where there isn't even a temperature gauge anymore - the tachometer redline changes dynamically on the BMW depending on oil pressure and temperature.

Are there any guidelines on engine RPM depending on oil pressure and engine temp?

Thanks

chago996 · 11-03-2009, 12:56 PM

Manual says don't go over 4k rpm until temp is at around 180. But that's coolant temp. Oil temp may take a little longer which is more important. I usually wait about 15 min of driving to insure this.

roadsession · 11-03-2009, 04:36 PM

Quote:

Originally Posted by chago996

Manual says don't go over 4k rpm until temp is at around 180. But that's coolant temp. Oil temp may take a little longer which is more important. I usually wait about 15 min of driving to insure this.

Frak. I have a 7 minute commute

redridge · 11-03-2009, 05:50 PM

Frak.....

Isnt BSG new season out yet?

I would take her out on long spirited drives once in awhile.

Dave! · 11-03-2009, 06:46 PM

Quote:

Originally Posted by roadsession

Frak. I have a 7 minute commute

I've got the same "problem". Just take it out for a longer drive on the weekend where you can run the engine up and down and take a long route home from work every so often.

You'll have to change the oil more frequently though, say 5000 miles as a minimum.

Michael-Dallas · 11-04-2009, 08:25 PM

Quote:

Originally Posted by Dave!

I've got the same "problem". Just take it out for a longer drive on the weekend where you can run the engine up and down and take a long route home from work every so often.

Plus Juan. Short trips where the oil does not reach operating temps may increase engine oil consumption.

Regarding oil pressure, the rule of thumb I've heard is 10psi for every 1000rpm (up to a point) when the oil is at operating temp.

///Michael

roadsession · 11-04-2009, 11:04 PM

Ok this is what I've observed.
When I first start the car the engine temp is at the left most position and the oil pressure gauge is at 5.
After driving 15 mins or so the engine temp is at around 180 and the oil pressure gauge is at 3 or so at idle.

That's the only time I feel comfy going above 3K RPM.

First, is this normal behaviour (the oil and temp gauge correlation) and if so am I being too conservative?

knfeparty · 11-04-2009, 11:35 PM

2-3 bar at idle once the engine warms up is normal. So is 4-5 bar idle at cold.

Getting 2-3 bar at idle is a good indication that the oil is warmed up and not just the coolant.

It takes awhile to get 9 qts of oil warm, so be gentle on it until it does get warm.

Carrera Mike · 11-05-2009, 12:10 AM

My experience with my 06 996 was:

-Pegged during warm up
-on 2 or less at idle
-pegged on 3K and up RPM

peavynation · 11-05-2009, 03:10 AM

Quote:

Originally Posted by Carrera Mike

My experience with my 06 996 was:

-Pegged during warm up
-on 2 or less at idle
-pegged on 3K and up RPM

+1

And for what it's worth, I'm running 5W-50. But I don't mean to make this into the 1,482,937th oil thread.

Lol!

11-03-2009, 12:36 PM	#1
roadsession User Join Date: Jul 2007 Location: MA Posts: 83	Oil pressure and RPM Ok sorry for the newb question, but I am coming from a BMW where there isn't even a temperature gauge anymore - the tachometer redline changes dynamically on the BMW depending on oil pressure and temperature. Are there any guidelines on engine RPM depending on oil pressure and engine temp? Thanks

11-03-2009, 05:50 PM	#4
redridge Addict Rennlist Member Join Date: Oct 2006 Posts: 3,425	Frak..... Isnt BSG new season out yet? I would take her out on long spirited drives once in awhile. __________________

11-04-2009, 11:35 PM	#8
knfeparty Addict Rennlist Member Join Date: Sep 2006 Location: Jacksonville, FL Duval County Posts: 1,987	2-3 bar at idle once the engine warms up is normal. So is 4-5 bar idle at cold. Getting 2-3 bar at idle is a good indication that the oil is warmed up and not just the coolant. It takes awhile to get 9 qts of oil warm, so be gentle on it until it does get warm. __________________ E Stock Alpine White on Blue 1989 944 NA 2.7L 8v. Options: 030 (Sport Chassis) 220 (LSD), short 5th, driver sport seat cloth GT Silver 2004 911 40 Jahre edition PCM2, heated memory comfort seats, 030, 220, x51 included of course

11-05-2009, 12:10 AM	#9
Carrera Mike Addict Lifetime Rennlist Member Join Date: Jul 2003 Location: Virginia Posts: 3,496	My experience with my 06 996 was: -Pegged during warm up -on 2 or less at idle -pegged on 3K and up RPM __________________ Carrera Mike Carrera Albums PCA First Settlers Region

11-03-2009, 12:56 PM	#2
chago996 User Join Date: Nov 2002 Posts: 184	Manual says don't go over 4k rpm until temp is at around 180. But that's coolant temp. Oil temp may take a little longer which is more important. I usually wait about 15 min of driving to insure this.

11-04-2009, 11:04 PM	#7
roadsession User Join Date: Jul 2007 Location: MA Posts: 83	Ok this is what I've observed. When I first start the car the engine temp is at the left most position and the oil pressure gauge is at 5. After driving 15 mins or so the engine temp is at around 180 and the oil pressure gauge is at 3 or so at idle. That's the only time I feel comfy going above 3K RPM. First, is this normal behaviour (the oil and temp gauge correlation) and if so am I being too conservative?