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  #1  
Old 08-12-2007, 09:24 PM
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IS 3 normal for Oil pressure

Is 3 normal for oil pressue at 3k? Idles around 1.

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  #2  
Old 08-12-2007, 09:36 PM
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It is normal for oil pressure to be between 1 and 2 bar at warm idle, and should slam up to 3 bar fairly quickly as you raise the RPM.

-sam
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  #3  
Old 08-12-2007, 09:37 PM
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No, you need a new engine!





































Just kidding. It's 100% normal.
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  #4  
Old 08-12-2007, 09:37 PM
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1 sounds low at idle. Is this at full operating temperature?
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  #5  
Old 08-12-2007, 09:40 PM
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Oil pressure at idle should be 3 when the engine is cold. When the engine warms up and is idling it should be between 1 and 2. If it stays at 3 all the time your idle rpm might be too high.
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Old 08-12-2007, 09:42 PM
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I've never had a MB that idled with less than 1.5 on the gauge.
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  #7  
Old 08-13-2007, 12:14 AM
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Spec is 3bar by 3k rpm.

Min @ hot idle is .3 bar.
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Old 08-13-2007, 11:44 AM
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i was going to post this

I am around 1.6-1.75 or so at idle. It pegs out as soon as I am on the go pedal, and it drops pretty quick when I come off the pedal to begin braking....I have read you watch the speed at which it drops when you come off the pedal to determine the health of the engine. A quick drop isn't as good as a slow steady drop to idle.

However, shamefully I have been using the wrong weight Mobil 1 synthetic oil, and will change that in a few miles. Will that possibly change my pressure?
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Old 08-13-2007, 12:34 PM
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It can.
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  #10  
Old 08-13-2007, 09:48 PM
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I know it is at 3 during hot running. I'll check the cold and hot during Idle and let you know. I know I have had differences in oil pressure using different brands of oil filters as well.
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Old 08-13-2007, 10:25 PM
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Mine idles at about 0 to .3 on a hot day. If its really hot and I come off the freeway it sits at 0. When cold its at 3. When I accelerate it goes to 3. My problem is my oil pressure sender....its dying. It jitters and skips a lot too when I am slowing down. Oh well....I'll replace it when it fully breaks.
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  #12  
Old 08-14-2007, 12:35 AM
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Quote:
Originally Posted by pawoSD View Post
Mine idles at about 0 to .3 on a hot day. If its really hot and I come off the freeway it sits at 0. When cold its at 3. When I accelerate it goes to 3. My problem is my oil pressure sender....its dying. It jitters and skips a lot too when I am slowing down. Oh well....I'll replace it when it fully breaks.
I have a couple of extra ones. I need a tranny filer tube. Do you have one?

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