Oil pressure

BMWX1-35i · 10-24-2014, 08:33 AM

Does anyone know what the oil pressure is on an N54 when warm?

Freon · 10-24-2014, 10:21 AM

Don't know your answer, but keep in mind RPM matters as well, and there is a relief/bypass valve that sets an effective maximum (typically ~80psi).

So for idle and 3000rpm there will be different values.

BMWX1-35i · 10-24-2014, 04:51 PM

Mine at a cold startup is shows 100 PSI on my oil gauge at an idle. After it gets to operating temp its around 40 PSI at idle. I'm using Royal Purple 5w-30. I thought maybe the gauge was off so I hooked up a mechanical gauge and it had the same reading so the gauge is correct. Below is where I have it tapped in for the sensor. That braided hose goes to the sensor thats mounted near the firewall.

I'm new to the N54 and BMW's and my past cars never had oil pressure that high, most were at 65 psi cold and 30 at an idle. So when I installed this oil pressure gauge I was surprised at these readings. One time it was at 115 PSI on a chilly day, around 40 deg in the morning.

Dackelone · 10-24-2014, 04:57 PM

Quote:

Originally Posted by 135droptop

Mine at a cold startup is shows 100 lbs on my oil gauge at an idle....

Don't you mean PSI ???

BMWX1-35i · 10-24-2014, 04:58 PM

Quote:

Originally Posted by Dackelone

Don't you mean PSI ???

Sorry, 100 PSI.. I'll fix my post.

Dackelone · 10-24-2014, 05:05 PM

Quote:

Originally Posted by 135droptop

Sorry, 100 PSI.. I'll fix my post.

Ok, cool.

I ran a search on Google, found this...

N54 Oil pressure - results are in!
http://www.e90post.com/forums/showthread.php?t=581081

BMWX1-35i · 10-24-2014, 05:09 PM

Quote:

Originally Posted by Dackelone

Ok, cool.

I ran a search on Google, found this...

N54 Oil pressure - results are in!
http://www.e90post.com/forums/showthread.php?t=581081

Thanks, I saw that post but did not find much other then that regarding normal oil pressure readings. So, mine reads between 40 - 115 PSI at idle depending on the engine temp. So I guess this is normal??

Dackelone · 10-24-2014, 05:18 PM

Quote:

Originally Posted by 135droptop

Thanks, I saw that post but did not find much other then that regarding normal oil pressure readings. So, mine reads between 40 - 115 PSI at idle depending on the engine temp. So I guess this is normal??

Sounds normal to me.

BMWX1-35i · 10-24-2014, 05:30 PM

Quote:

Originally Posted by Dackelone

Sounds normal to me.

Great, I feel much better....

10-24-2014, 08:33 AM	#1
BMWX1-35i 2015 X1 35i XDrive with NAV 76 Rep 659 Posts Drives: 2015 X1 35i Join Date: Aug 2014 Location: East Coast iTrader: (2) Garage List 2015 X1 35i Xdrive [8.00]	Oil pressure Does anyone know what the oil pressure is on an N54 when warm? __________________ 2015 X1 35i XDrive Ultimate, NAV & Cold Weather Package MHD, FTP Motorsports Charge Pipe, Drop in K&N
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10-24-2014, 10:21 AM	#2
Freon Major 81 Rep 1,051 Posts Drives: 2009 135i Join Date: Nov 2007 Location: Indianapolis iTrader: (3)	Don't know your answer, but keep in mind RPM matters as well, and there is a relief/bypass valve that sets an effective maximum (typically ~80psi). So for idle and 3000rpm there will be different values. __________________ 2009 BMW 135i 6MT Sport, AFE intake, Cobb AP, Apex 18x8.5+9.5, 255/275 PSS
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10-24-2014, 04:51 PM	#3
BMWX1-35i 2015 X1 35i XDrive with NAV 76 Rep 659 Posts Drives: 2015 X1 35i Join Date: Aug 2014 Location: East Coast iTrader: (2) Garage List 2015 X1 35i Xdrive [8.00]	Mine at a cold startup is shows 100 PSI on my oil gauge at an idle. After it gets to operating temp its around 40 PSI at idle. I'm using Royal Purple 5w-30. I thought maybe the gauge was off so I hooked up a mechanical gauge and it had the same reading so the gauge is correct. Below is where I have it tapped in for the sensor. That braided hose goes to the sensor thats mounted near the firewall. I'm new to the N54 and BMW's and my past cars never had oil pressure that high, most were at 65 psi cold and 30 at an idle. So when I installed this oil pressure gauge I was surprised at these readings. One time it was at 115 PSI on a chilly day, around 40 deg in the morning. __________________ 2015 X1 35i XDrive Ultimate, NAV & Cold Weather Package MHD, FTP Motorsports Charge Pipe, Drop in K&N Last edited by BMWX1-35i; 10-24-2014 at 05:02 PM..
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