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997.2 Engine problems and oil use

Glen it's terrible when your dream car gives you worry like this! Hope it all works out ok!!
 
silvermilnec said:
Glen it's terrible when your dream car gives you worry like this! Hope it all works out ok!!

+1 I hope it gets sorted out with the least pain possible so you can get back to enjoying the car.

The only reason to take it to an OPC would be if it is covered by the Porsche warranty but do check the reviews of the OPC if you are trusting them with your P&J. If it is not then take it to a recognised specialist e.g. Hartech.
 
Gottans said:
silvermilnec said:
Glen it's terrible when your dream car gives you worry like this! Hope it all works out ok!!

+1 I hope it gets sorted out with the least pain possible so you can get back to enjoying the car.

The only reason to take it to an OPC would be if it is covered by the Porsche warranty but do check the reviews of the OPC if you are trusting them with your P&J. If it is not then take it to a recognised specialist e.g. Hartech.

+2. Certainly hope it turns out well. If they do a bore scope ask that they give you the images for peace of mind or to have Hartech evaluate. Marking on the cylinder bores is normal and it might be worth getting a second opinion!
 
I've done about 1500 miles since my OPC service on my gen2 which now has around 60k and the top oil light came on, mine also took over a litre of oil to get the gauge back to the top which I thought was a lot for the miles covered.

Now monitoring it over the next short period before the warranty renewal comes up.
 
rhino-man said:
I've done about 1500 miles since my OPC service on my gen2 which now has around 60k and the top oil light came on, mine also took over a litre of oil to get the gauge back to the top which I thought was a lot for the miles covered.

Now monitoring it over the next short period before the warranty renewal comes up.

Thats within porsche spec i presume for a dfi engine?

Its a funny old subject and one where theres no definitive answer it seems.

My gen 1 S had a service 3 weeks ago along with a bore scope. Found scoring on 4 and 6 yet doesn't use oil.

Done over 500 mile since service and oil is bang on still.

When i say it doesn't use oil, i mean a 1/4 of a litre in between srvices (2 yrs) and 5000 approx.
They all seem to use oil at different levels. Whichever generation it is :?
 
I guess oil usage is so variable depending on lots of things, driving style, engine condition, journey lengths, ambient conditions etc.

My Gen1 used very little oil until the last 3 - 4 months before my engine rebuild when consumption rose significantly, although it was still probably well within the Porsche limits! It also never really smoked except the very occasional puff on start up! The problem is, when you are aware of a problem or think there might be something wrong, it is natural to be over conscious of every little anomaly. I think I became so hyper sensitive I was imagining all sorts of noises, vibrations etc. Until it was driving me mad!
 
DucatiRob said:
I guess oil usage is so variable depending on lots of things, driving style, engine condition, journey lengths, ambient conditions etc.

My Gen1 used very little oil until the last 3 - 4 months before my engine rebuild when consumption rose significantly, although it was still probably well within the Porsche limits! It also never really smoked except the very occasional puff on start up! The problem is, when you are aware of a problem or think there might be something wrong, it is natural to be over conscious of every little anomaly. I think I became so hyper sensitive I was imagining all sorts of noises, vibrations etc. Until it was driving me mad!

DucatiRob - many congratulations on your 1000th post. :D :D
 
DRZ911 said:
DucatiRob said:
I guess oil usage is so variable depending on lots of things, driving style, engine condition, journey lengths, ambient conditions etc.

My Gen1 used very little oil until the last 3 - 4 months before my engine rebuild when consumption rose significantly, although it was still probably well within the Porsche limits! It also never really smoked except the very occasional puff on start up! The problem is, when you are aware of a problem or think there might be something wrong, it is natural to be over conscious of every little anomaly. I think I became so hyper sensitive I was imagining all sorts of noises, vibrations etc. Until it was driving me mad!

DucatiRob - many congratulations on your 1000th post. :D :D

Cheers :thumb:
 
previous 911's

I have had 911's before and they only used a little oil between services - never needed topping up 4K oil changes.

I cannot get my head around 1L per 620 miles.
May seem strange but part of me hopes they do find a problem eg AOS or whatever. Don't think I can keep a car long term that uses so much oil.
I do wonder if taking it to a Porsche main dealer is the wisest move as they may have a vested interest in saying it is fine - reputation of 997.2 engines etc.

Reality is that the oil is being used somewhere somehow it is not evaporating and it is in all likelihood via poor tolerances, piston rings, or valves or a combination.

My last 911 a 996.2 C2 used a little oil but when I changed the oil type it was negligible between changes.

Porsche stats of 1L per 633 miles being acceptable just does not wash with me at all. Don't care what people try and convince me of. Engines will all consume 'some' by design the pistons need lubing but it cannot be good long term to be chewing through that amount. I have seen my father take apart many an engine with problems to see first hand what long term oil deposits look like.

Will see what Porsche Exeter say - it is not their own warranty so will know in a couple of weeks.
I will strongly dispute it if they say it is not using that amount as I have been monitoring it since December and used a measuring jug to refill and kept a spreadsheet.

Ta for the comments and info
Glen
 
good luck mate hope it is just a seal or AOS etc that can be quickly fixed, i think your right i wouldn't be happy using that much oil so make sure its not an option just to give it back and say its within tolerance when you drop it off!
 
Oil usage imho is different from car to car .. ive seen great variations for no real reason .

Gen 2 997 has a different oil seperator and whilst it can fail its more unlikely .. you tend to get vacum type noises when it does fail .

An OPC .. well its just about within limits so unless theres an obvious leak they may well say that .

It may though be a leak .

How far you go with inspecting though is the question , warrenty wont pay for it ..

Check for leaks , scope the cyls i think is what i would do first and depending on that then what to do with the car .. Indy or OPC can do that but you would have to ask .. not just say its useing oil .
 
I've always been fairly alarmed with the oil usage of mine which has averaged 865 miles per litre. It does change though depending on use - a long euro trip saw much less usage per mile.
 
Maybe an oil leak that only manifests when under a certain load? I think if the AOS is at fault then you get a strong vacuum from the whe you remove the oil filler cap! Worth a check although not sure if a fault AOS would result in such high oil consumption :dont know:
 
Do not think there is a leak

Trying not not make assumptions - if all of mine had panned out the way I thought/wanted I would be chatting to Jay Kay about my large Ferrari collection and telling the groundskeeper I am not satisfied with the lawn stripes haha.

I do not think there is an oil leak - driveway clean and under the car is also clean.
I have already been told that I will get the bill for the evaluation work if no problem is found. I am ok with that. Do not want to keep driving round with 4L oil, a measuring jug and paper towels in the bonnet wondering what/if anything is wrong.

I expect it to pan out one of three ways;

'Within tolerances sir' = car will be traded in, cannot accept that in any way.
'Its the X and Y sir -Inchcape warranty covered' = It will be fixed and kept.
'Its the X any Y sir - warranty say p**s off' = will be rejected and returned to dealer under 2015 consumer goods act as only had it 5 months and issue reported at point of purchase.

Kind of hoping for the second one, never thought I would want something to be wrong with a car!

There was a contributor on here in Feb that had the same thing with a 997.2 but they did not post a conclusion of the testing.

Anyhow it is in in two weeks

Regards
Glen
 
Re: Do not think there is a leak

glenwells said:
I expect it to pan out one of three ways;

'Within tolerances sir' = car will be traded in, cannot accept that in any way.
'Its the X and Y sir -Inchcape warranty covered' = It will be fixed and kept.
'Its the X any Y sir - warranty say p**s off' = will be rejected and returned to dealer under 2015 consumer goods act as only had it 5 months and issue reported at point of purchase.

Kind of hoping for the second one, never thought I would want something to be wrong with a car!

A well thought out and sensible approach.

Hope you get the outcome that you want.
 

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