Just in time

Dipstick please. Nothing like quality motor oil caressing the fingers! One more lost auto experience.

SMGT3

4 months of ownership of the new GT3, I've never had success in getting an oil level. WTF.

Mech33

Get the oil above 185 F, then idle the car on a flat surface for over 2 minutes, then check the oil level.

Mike in CA

+1 I've yet to have a problem following those steps.

SMGT3

Thanks guys, I'll give it a try tonight.

neuroguru

At my first oil change at 2,240 miles (I did a voluntary post-break-in change and am sending it to Blackstone for curiosity and baseline), the tech filled to 180% via the external measurement system after 30 min drain, to avoid overfilling. I believe this system summates the pan value as 100% and dry sump tank as 100%, giving a combined total of 200% when both are full.

I left and shortly thereafter the vehicle sensor system indicated overfill warning and he had to drain a small amount off to normalize it.

Twitchy system.

Mech33

External measurement system??

neuroguru

The Porsche dealer uses an external sensor system. It reads 200% when the oil pan and sump tank are full. It clearly doesn't correlate well with the U/S sensor system in the car.

major dad

Can someone please remind me the correct distance in litres between low and full on the sticker in the engine bay. Did Porsche change this when the engines were rebuilt, ie did it go from 250mls or 400 mils to 500 mils or something ? The sticker did change, why ?

Michael ZZ

I have just passed the 1100km mark and I got a low oil warning. I was a little surprised as I have been running the car in. Anyway, I never checked the oil level before and infact, I had not even opened the engine bay yet, and was suprised to find the carbon fibre bit in there lol

So I put 1/2 litre Mobil 1 in and then commenced with the mission to check the level. I was smiling when I read this thread and saw that we all have similar issues with this oil level measurement system! Anyway, I eventaully got a reading and confimred it was 3 bars, which is recommended.

As I didn't know the inital oil level I cannot know whether my consumption is excessive. I guess I can just mointor it regularly. Really hope its not a problem.

levd

If i'm not wrong, official oil consumption for 991 GT3 is 0.8L / 1000 km.

So no surprise.

I decided i should be ready to all 0.5L every 500-1000 km, depending on how often I push the engine to the limit.

Mike in CA

The sticker in the engine bay shows a difference of .5L between the MIN and MAX marks. The sticker didn't exactly change; before the engine swap there was no sticker. But the manual showed a difference between the MIN and MAX of .8L so the sticker updates the manual. It does seem that .5L is close to the correct difference.

The "?" icon on the sticker points to an icon for the manual if you have questions and of course the manual and sticker don't agree, at least for the 2014's. Strange. Also, I've never seen an explanation anywhere as to whether there was a design change with the new engines or whether the .8L to .5L change was simply a correction.

mainly

2 minutes????

Alan C.

neuroguru: Care to share yur results? Here's mine at 1000 miles:

Macca

Hi Alan

I dont know how to read these however I suspect they depend on the construction of the cylinders and they tyres of product the manufacturer uses for the liners etc. Yours seems to be acceptable for an engine of the construction type Porsche use for the 991 GT3 to my non informed eye. However as your engine hasnt been run repeatedly to redline prior to these tests (assumption) they do not give us much more than an early life break in base line I believe. As such would be very interested if you could publish these reports as you proceed in ownership as it will be interesting for all. My belief is this engine does not start burning oil until used repeatedly in the 7500-9000 rpm range. This is most evident on track where 90 minutes of track time leads to a 350-450ml engine oil top up for me typically. On the road the consumption is far better than the guide in the manual would suggest - perhaps 150ml over a 1000-1500 mile drive. If driven hard in the hills repeatedly up to and beyond 7000 rpm I have found that 500-700 miles will elicit similar oil consumption. As such it seems the speed of the drive-train will determine the burning of oil. This may be in part due to the finger rocker design and enhanced rev range although I am not an expert to comment.

One further note, if the engine oil is brought to temperature and the car left idling when the rear lid is opened then the level does not reset so you do not have to go through the laborious procedure described to start getting a reading again.