If what you say is true, the break-in has already partially occurred at the factory, since it is within the first hours of the engine running. I think you are on the right track, the engineers aren't really worried about the engine more so than the drivetrain to get the bearings to seat. Maybe that's why there is a RPM limit (basically a HP limit to the drivetrain) and limiting top speed. Previously on the M5, they required a strict break-in period (1200 miles, 4k RPM, top speed of 105 MPH) but didn't change the engine oil but only the rear differential fluid.

 

That's not what physics thinks.

 

I was told not to fill the oil over the last bar, meanng when I pick up my car it shows the last bar not covered. I was told that this is the correct level. If you over fill that bar, it will be bad for the car and will burn off. Not sure what it will do to the car but my sales person has proven himself to be in the know on the 911's. Perhaps this helps.

 

I just changed the oil today in our 2011 911TT. I measured what I drained out vs what the owners manual says it's supposed to have :

Manual says 7.9 qts approx to fill. [ I really like the "approx" part ]
Drained and measured 7.75 qts.

2131 miles highway and city use.

Given there's probably still some puddled in there or soaked in the oil filter and it may have used a few drops, I'd say that's about as close to zero consumption as you're going to get. I'm very happy with this. Very impressive for the first 2k miles too.

In all cases use the owners manual and compare that to what you drain out. Be careful not to significantly overfill.

--CC

 

Chris I almost have 30000 miles on my car and it hardly burns any oil at all. Problem I have is my car sounds like its got marbles churning in the crankshaft (but only at idle). It might be "normal" but something tells me its not going to get better so lets trade problems!

 

I have a similar noise when my car is in neutral, idling with the clutch disengaged. I actually like the noise, It goes away when I engage the clutch. It kind of reminds me of the noise a Ducati motorcyle makes at idle.
I am not worried about it, or does anyone out there think I should be and if so why?

 

Not to make you guys nervous, but be aware that turbos can have IMS problems just like the NA cars:

http://www.youtube.com/watch?v=ruLdi...el_video_title

http://www.youtube.com/watch?v=YP00c...el_video_title

 

Do you by chance have a light weight flywheel ? If so that will also cause a rattle that's only there when the clutch is engaged, as soon as you press the pedal it goes away.

--CC

 

Hi Ermanno; i've been following the thread on the other site. Does your car sound like the one in the vid Bob posted? I wasn't sure what this "noise" people were talking about but I definitely don't have that.

This is an old thread and my oil use is very good I think. have a little over 46,000 miles on it.

 

Yes Captn., I have the single mass flywheel in my car. I am disappointed that there is no technical information available from Porsche about the GT 2 RS, only what is in the owners manual. There is no detailed product description, nothing describing the engine mount system, or the oil temperature heat exchangers. I notice the engine oil reaches operating temp very quickly, as opposed to other Porsches I have owned. Do you know of any source for information aside from the various press articles?

 

My guess is the racket you're hearing is transmission rattle due to the single mass flywheel since it goes away when you depress the clutch. This is pretty common across several transmission types used by all sorts of manufactures. If in fact that is the case it's more annoying than anything else. Had the exact same issue with a ZF 6spd in a Vette. Sounds like a box of marbles is in the gears.

Your best friend is google search, it will find things just about anywhere including forums. I personally haven't seen much on the RS in terms of official publications.

--CC

 

Thanks for that.
The salesman at the dealership where I bought the car said he would get me the product information brochure for the GT2 RS, only available to dealers, but when he went to download it, it had been deleted from the website!

 

Yes Chris that is the noise only mine is not as bad. It occurs when the car is warmed up at idle. Pressing in the clutch wont effect it and it usually disappears after 2000 RPM. I am taking Kevins advice and using a thicker oil which helps. Also I change my oil every 5k mi and inspect the oil filter for metal flakes (you need to cut it open first). As long as you stay on top of it and it doesn't get worse i wouldn't worry about it. If you are not sure that you have it then you probably don't. A lot of these engines make the noise. Some are just louder than others.

 

I have to refill my oil (from low warning level to the top) approx every 2,000 miles (35k MY04, 996tt).

I do generally town driving but also some quick highway driving (100-120mph cruising). Never any smoke apart from now and again on start up as I might expect, no leaks.

Does this sound OK or does it sound as though there may be an issue with the car as I have never driven anything that used this much oil!


Edit: Just saw this is the 997 thread, my apologies but it seems a good place to ask being as it is an oil consumption thread!

 

I do not like to read/hear of car owners waiting until the low oil warning light comes on to add oil.

I strongly advise you to use the oil level checking system built into the car and add oil before the level gets low enough to cause the low level light to come on. But do not overfill the engine with oil either.

Absent any other signs of engine troubles, no check engine light, no overheating, loss of coolant, no oil leaks, while the engine's oil consumption is a bit on the high side, it is still within acceptable limits.

Be careful you do not let needless concern over oil consumption that falls within the normal range of oil consumption to ruin your enjoyment of what is a very fine automobile.

Oil consumption depends upon many factors, some of which are how the car is driven, the oil used, how often it is changed.

Use a good approved oil of the proper type and viscosity grade. Change it at reasonable intervals. An oil as it is used gathers/accumulates water and unburned fuel and this reduces the oil's ability to protect the engine but also can add to the tendency of the engine to burn oil.

If you can avoid excessive idling and remember to high rpm usage generally ups oil consumption too.

But regardless, enjoy the car.

Sincerely,

Macster.