Cayman GT4RS - Oil consumption

[SpookRS]

Just interested if other 4RS owners have needed to top up their oil levels.
I've done 3400 miles now and the car has flagged up low oil level on three occasions.
I put in another 0.5 lt oil yesterday, a total so far of 1.5lt since delivery.
I've had a variety of GT cars now and I don't recall the consumption being quite so much.

[scrounger73]

Lots of this on Rennlist from 4RS and GT3 owners.

Looks like the GT3 engines drink like Oliver Reed at a beer festival. In honesty the 4.0 in the Cayster is the same.

Edited by scrounger73 on Thursday 26th October 16:11

[Sandy59]

scrounger73 said:

Lots of this on Rennlist from 4RS and GT3 owners.

Looks like the GT3 engines drink like Oliver Reed at a beer festival. In honesty the 4.0 is the same.

Mine asked for a 0.5l top up after 700 miles, then last time I checked at around 2k miles the level was still near the top

[rkwm1]

Both the 992 GT3 and the 4RS seem to get through alot of oil!

Approx 0.8l per 800-1000 miles or so

[hunter 66]

In 23 k miles , track days etc , Still have not put any oil in my .2 GT3RS , was good in the running in though .

[Nuttbelle]

Shouldnt be burning that much oil so Hope this isn't the first sign of more porsche engine issues

[SpookRS]

Thanks for the replies guys. I'll keep an eye on it - certainly didn't need to top my 991.2 3RS WP in 15k miles of ownership.
I thought the 4RS was the same engine? Perhaps I just have a thirsty one!

[ChrisW.]

A different engine, but in my GT4 which has done 31,000 miles I generally add round 0.5l to maintain a 3/4 level between oil and filter changes at 3500 mile including four or five track day intervals ?

It was carefully run-in and is over-maintained, but oil is cheap !

[Cblair246]

I had an amber oil warning light at 250 miles! Added about 0.4l and that took me to just over half full. Now at 1500 miles and think I’m probably just under half full. Followed run in to the 932 miles recommendation.

[SpookRS]

Thought I’d give an update to this thread. I’m over 7000miles now and l’ve added nearly 4 litres of oil in that distance. Never had any sign of blue smoke and I ran it in just as carefully as previous GT cars which to be honest haven’t really needed much other than the odd top up, if that. Strange as it’s been used as intended on track and trips abroad just like before. I mentioned it to my PC yesterday just as a precaution. Any others got a thirsty 4RS out there?

[bigmowley]

I did just under 4000miles in mine. Running in plus 3 track days. It was delivered at half full! Tight arse Porsche. I put 0.4L in to bring it up to the max then it never took another drop of oil. It was about 2 bars below the max level when i sold it. Make of that what you will but there is obviously some variation.

[SV_WDC]

The speculation around these engines is the oil consumption is due to the engine / particulate filters running significantly hotter to help with the emissions. This is why owners are seeing higher oil use even after the run-in period.

[DJMC]

SV_WDC said:

The speculation around these engines is the oil consumption is due to the engine / particulate filters running significantly hotter to help with the emissions. This is why owners are seeing higher oil use even after the run-in period.

The oil evaporates?

[rkwm1]

I got through around 4-5l in 5.5k miles. It did have a problem with the throttle body, which was replaced at 5k miles, so maybe that was causing excess consumption?!

[av185]

I've had a couple of 4.0 GT3s that use a bit of oil and always smoke on initial start up and one that didn't using any oil whatsoever between services.

As ever running in properly appears to minimise oil consumprion imo. Cue those who claim it makes no difference whatsoever lol.

OPs oil consumption does seem rather excessive.

Edited by av185 on Sunday 29th October 09:03

[ChocolateFrog]

SpookRS said:

Thought I’d give an update to this thread. I’m over 7000miles now and l’ve added nearly 4 litres of oil in that distance. Never had any sign of blue smoke and I ran it in just as carefully as previous GT cars which to be honest haven’t really needed much other than the odd top up, if that. Strange as it’s been used as intended on track and trips abroad just like before. I mentioned it to my PC yesterday just as a precaution. Any others got a thirsty 4RS out there?

Run engines in hard.

I'd put money on the excess oil consumption being linked to gentle running in.

Particularly in the first few miles.

[I Like Tea]

ChocolateFrog said:

Run engines in hard.

I'd put money on the excess oil consumption being linked to gentle running in.

Particularly in the first few miles.

Yep. My race engine builder always used to tell me to just race straight away as normal. Never had any oil consumption problem. It was more effort bringing in a new set of Avon slicks!

[Kerniki]

What were the tell tell signs for all the gt4 engine failures?

Edited by Kerniki on Sunday 29th October 10:05

[scrounger73]

Wasn't really any 4.0 engine failures on the 718. Oil pumps and con rods which grenade the engines yes but no engine failures per se.

[av185]

Yep seem to recollect it was a precautionary measure by Porsche to replace several batches of pre May? 2020 4.0 engines.