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High Oil pressure & Approved oil

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Recently I have purchased a 997 C2S.

Everything is great and all, but it has a couple problems

first, although I usually start drving after 20 min of pre-warm up.

The oil pressure still shows up about 5.0 bar!

Its way above than normal, which should be around 3.5

The oil level was already a little bit low when i got the car

(the car has only 420km on it!) So I thought that this is what

might caused the problem...(Althought it does not make any sence)

but no...even after I added up more engine oil the oil pressure is still 5.0!

Iam thinking about changeing my engine oil and oil filter ASAP.

Hopeing, that might fix the problem.

Because I dont live in the states, I assume this cheap %$& importing

company might did something wrong (It already had 150km on it when

I got my first car!)

So I need to find out all the list of porsche approved engine oil list for worldwide.

Anyone knows where the link might be? I heard the list is pretty darn long~

And... if anyone had this similar problem with their new prosche, please

share the information with me. I heard its normal thing for a barnd new prosche.

And it will settle down after the break in period, but i want to find out now

if there is any problem, so that I can claim this improting company about it.

Thx for all urhelp and god bless ur prosches, whatever the model might be~


Anyone knows how to pre-warm up an engine properly in a cold weather??

I heard it is bad for the engine if I just start the car and let it sit there

Edited by angeltic
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Hi angeltic and welcome to the renntech forums. Congratulations for your recent purchase; I hope you won't worry too much and have fun with your car.

There's absolutely no problem with your car: everything is normal with the oil pressure gauge.

Also, there is no need to add further oil or change the oil; assuming you've added or filled in the same 0W-40, oil pressure gauge gives you the same correct lecture. Porsche recommended oil for your 997S is "Mobil 1 0W-40 Supersyn" [this is what they put in at the factory].

I don't think that 20 mins at idle is necessary before driving your car. You should wait 20 sec, in order for the oil to make a complete cycle.

I suggest you take a look at the figures below, just to check that everything is normal procedure. The thing to retain is that the pressure gauge should always be > 1.5 when idle [with Mobil 0W-40, it stays at 2]

---cold/warm---------rpm--------------oil pressure

cold--------------------idle--------------------needle goes up to 5 in the first 1.5 seconds

warm------------------idle--------------------drops slowly to 2; should never drop down to 1.5


warm---------------3200<rpm<4200-----around 5

warm----------------rpm=5000------------3.5 [check this when break-in period is over]

[warm means for me, normal driving temperature, i.e the oil temperature needle at the middle]

Enjoy the car :)

Edited by zacharie
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  • Admin
thx for the reply and the kind help.

BTW, do u know the links to those worldwide prosche approved oil list?

on DIY section I heard that the list is pretty long but the article

only showed the list for US sales. thx

The list is 5 pages long (all Contributing Members have access to it as well as other TSBs). I listed the most popular US brands in the DIY.

What brand are you interested in?

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you mean...the above link? The TSB?... i um... im really srry to bother u... but it seems like i cannot click on the article to open it up...

could u plz tell me how can i read the articles?

am i having problems with my comp?

For Japan both Mobil 1 and Castrol are sold in Japan. As well, so is Motul, Shell, and WAKO'S Chemical Company Wako's ex Synthe 5W-40.

Only Contributing Members can view TSBs online (as well as a Contributors Only Forum, they can send attachments with PMs, image storage limits are raised for all Contributing Members, RennTech.org email addresses are available and now a personal Blog.).

Contributions help defer the cost of running this site and providing this information to you. No one has to contribute - but almost 10% of the members do. Without contributions this site would either have to go subscription or cease to exist.

Considering a the lowest priced Porsche is around $50,000 (US) and highest priced around $400,000, a single set of Carrera service manuals are $2091.10 - perhaps RennTech.org a $25 (or more) donation to RennTech.org is good investment?

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Im srry I guess I misunderstood something... How can I contribute to your website? I mean... I dont have paypal service... :-( hmmm...

I will try to get it with my credit card... thx so much for this great

web site~ Love your work, and your achievement

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ummm... im pretty new to ur website... so... i...uaaaa... cliuck on the

donoate to the website...but it seems like there is only paypal option..

i will use my credit card to get a paypal account at ebay...

Thanks for yout tips

You don't need a PayPal account - just click on the "Click Here" button after "If you do not currently have a PayPal account" and it will take your credit card.


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Sorry if the question is impolite...is there any chance to get a decal [just like the one Loren has on his car] with the renntech.org donation?

:lol: Sorry, but RennTech.org does not make the decals. The decals are done (with our approval) by XenonMods.com. A (very) small part of each decal order is donated to RennTech.org to help pay for our operating costs. At $12 (for a set of 2) I doubt you will find a better deal.
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