Oil pressure gauge fluctuating

[Rapid Red]

I just did the first oil change on my Bullitt today. I also noticed a rather 'jumpy' oil pressure gauge. Prior to the oil change it seemed a lot smoother. Afterwards, it hovered 20-30 on light acceleration then it shot up to about 85psig at 4k. found it a bit odd and will continue to watch.
think the 20 quarts of oil had anything to do with it?

Only at start up, when bumps 100psi. <smiling>

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[PP2Newbie]

First time you ever looked at your oil pressure gauge was after the first oil change?

Wasn't really getting on it before that. So there's that.

 

[GT Pony]

Wasn't really getting on it before that. So there's that.

Any RPM above an idle is going to make the oil pressure go higher. Typically about 10 PSI for every 1000 RPM on most engines.

 

[engineermike]

Are you all not understanding how the oil pressure control solenoid works?

 

[NoVaGT]

..........I never noticed before......

Now you can't un-notice it.

Totally normal.

 

[PP2Newbie]

Are you all not understanding how the oil pressure control solenoid works?

Cant speak for everybody else but I'm not there EngineerMike, Please explain.

 

[PP2Newbie]

Cant speak for everybody else but I'm not there EngineerMike, Please explain.

And are you talking like Choo Choo with the striped hat ???

 

[engineermike]

Cant speak for everybody else but I'm not there EngineerMike, Please explain.

There is an oil pressure control bypass valve controlled by the pcm. It will toggle oil pressure high to low and vice versa as a function of rpm and load. It does this stock and can be modified in the tune of desired.

 

[PP2Newbie]

OK, THX. So what about the hat ???

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