High Oil Pressure?

[bobgollihur]

I purchased a 2005 997 coupe (not S) just over two weeks ago, and took it to my local Porsche dealer for an oil change and other minor maintenance last Friday. They know me well as I also have a '04 Cayenne. Checking gauges on the way home I noted that the oil pressure gauge was pretty much pinned at 5 as I cruised the parkway at 65mph, fully warmed up. While I can't swear to it, I'm pretty sure it was closer to the midrange of the scale prior to that. It registers lower at idle, but as soon as there's any driving range RPMs going on we're back up at 5. I took it out again yesterday, warmed it up, and the same pressure readings exist.

The manual says 3.5 @5000 rpm, so I called my service rep, she spoke with the guy who worked on my car -- "that's ok, having higher pressure readings is good," he told her. I asked that she get a more authoritative, second opinion, as most gauge upper limits, IME, are designed to display and notify you of extremes. Too much pressure is not good according to my logical mind, unless you want to blow seals.

I did a search for oil pressure but couldn't find an equivalent post. Your experience is appreciated!

thanks! Bob

[shocky]

I purchased a 2005 997 coupe (not S) just over two weeks ago, and took it to my local Porsche dealer for an oil change and other minor maintenance last Friday. They know me well as I also have a '04 Cayenne. Checking gauges on the way home I noted that the oil pressure gauge was pretty much pinned at 5 as I cruised the parkway at 65mph, fully warmed up. While I can't swear to it, I'm pretty sure it was closer to the midrange of the scale prior to that. It registers lower at idle, but as soon as there's any driving range RPMs going on we're back up at 5. I took it out again yesterday, warmed it up, and the same pressure readings exist.

The manual says 3.5 @5000 rpm, so I called my service rep, she spoke with the guy who worked on my car -- "that's ok, having higher pressure readings is good," he told her. I asked that she get a more authoritative, second opinion, as most gauge upper limits, IME, are designed to display and notify you of extremes. Too much pressure is not good according to my logical mind, unless you want to blow seals.

I did a search for oil pressure but couldn't find an equivalent post. Your experience is appreciated!

thanks! Bob

Bob

I think you're OK. That 3.5 bar at 5000 rpm is a minimum reading. Sounds to me like you you have a good running engine. Understand, that unless the gage is calibrated every year you can get a variance in reading from one car to another. I would be much more concerned if it was reading lower than 3.5 bar.

John

[Ari911]

I have the same readings than you in my 2005 997 C. I guess thats the way it should be if everything is running fine, but to be honest felt worried as well first time I read the manual saying 3.5

Any other views appreciated

Thanks

Alfredo

[summoboy]

I have the same readings than you in my 2005 997 C. I guess thats the way it should be if everything is running fine, but to be honest felt worried as well first time I read the manual saying 3.5

Any other views appreciated

Thanks

Alfredo

An oil change - fresh oil, will do that. My oil pressure reads higher after oil chnages also, then will go down some as the oil breaks down.

Edited November 6, 2008 by summoboy

[slant83]

Same here in my Carrera (2005). Normal to have it at or near 5.

[bobgollihur]

I just spoke with a heavily trained Porsche guy who asked that I not identify him when relating his comments.

Bottom line, the gauge is not much more than an idiot light with numbers on it, actually, even less so. The Porsche's computer is closely monitoring the engine and will throw up a red flag in the form of the Check Engine Light if the oil pressure exhibits any sort of dangerous condition.

It's simply an attractive analog addition to the dash. ;)