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Milo72
Monza


Joined: 19 Sep 2018
Posts: 194
Location: Buckinghamshire


PostPosted: Sat Jul 27, 2019 8:14 pm    Post subject: How much soot is too much ??? Reply with quote

I have noticed spot on both left and right pipes. It’s not really bad but on the bottom lip I noticed it between washes (maybe 300 miles) I’ve not noticed it before but had been washing weekly and not doing as many miles.

I have put a litre of oil in since my last service which was about 3/4k miles ago.

Paranoia or should I be looking to trade in a kidney.

PS - I vote scored it when I bought it at 54k (now 60k) and there was light marks there but nothing serious.
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MisterCorn
Dijon


Joined: 08 Jan 2011
Posts: 7161
Location: Nottingham, England

2004 Porsche 996 Turbo

PostPosted: Sat Jul 27, 2019 8:31 pm    Post subject: Reply with quote

If both sides are the same i would ignore it and carry on.

MC
 
  
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Gray79
Silverstone


Joined: 28 Apr 2019
Posts: 102
Location: Scarborough


PostPosted: Sat Jul 27, 2019 9:24 pm    Post subject: Reply with quote

Similar to mine is now, and mine had an engine rebuild due to bore score last year. So I wouldn’t worry about it.
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jml3p
Monza


Joined: 25 Oct 2009
Posts: 178
Location: effingham in surrey


PostPosted: Sun Jul 28, 2019 8:46 pm    Post subject: Reply with quote

It is the near side pipes to worry about.
 
  
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resigner
Suzuka


Joined: 19 Dec 2013
Posts: 1225



PostPosted: Mon Jul 29, 2019 12:24 pm    Post subject: Reply with quote

How is the oil consumption? Mine did this when the AOS was on its way out..... Oil consumption suddenly went down to a litre/400 or so miles from 1200, changed the AOS (twice! faulty part new from Porsche!) and now it's ok again. It did smoke on startup a bit at first because the oil gets into places it shouldn't and then gradually works its way out as smoke, but could well be your AOS.....
 
  
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Robert SausageTrousers
Monza


Joined: 02 Apr 2018
Posts: 190



PostPosted: Mon Jul 29, 2019 1:12 pm    Post subject: Reply with quote

If it helps I have the same car on 65k miles and i've not had to top it up between oil changes (every 6k miles or so), I'm not sure if a litre in 5-6k is a problem though?
 
  
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Robertb
Dijon


Joined: 01 Sep 2003
Posts: 7120
Location: South Oxfordshire

2002 Porsche 996 Carrera 4S

PostPosted: Mon Jul 29, 2019 5:35 pm    Post subject: Reply with quote

Try using Esso Synergy fuel. Mine definitely seems cleaner with this than Optimax.
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resigner
Suzuka


Joined: 19 Dec 2013
Posts: 1225



PostPosted: Fri Aug 02, 2019 5:43 pm    Post subject: Reply with quote

Robert SausageTrousers wrote:
If it helps I have the same car on 65k miles and i've not had to top it up between oil changes (every 6k miles or so), I'm not sure if a litre in 5-6k is a problem though?



Really??????

Porsche says 600 miles per litre is fine. yes. 600. Mine does 1300 odd per litre, but then it gets driven properly Smile
 
  
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Hamster75
Spa-Francorchamps


Joined: 07 Sep 2017
Posts: 288
Location: Chester


PostPosted: Fri Aug 02, 2019 8:59 pm    Post subject: Reply with quote

Madness really that Porsche say its ok to use a Litre of oil in 600 miles that's terrible if you think about it,
I understand its to do with the Boxter sideways engine & oil running down into the cylinders when shut off, but very poor, any other car & you would say its knackered.

On my previous 997.2 it wasn't too bad but did use some, it seemed to use more on short trips & especially during summer hot weather.
Then less when the weather turned cold, can only put that down to viscosity & heat ?
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drmark
Silverstone


Joined: 07 Feb 2009
Posts: 148



PostPosted: Tue Aug 06, 2019 4:33 pm    Post subject: Reply with quote

resigner wrote:
Robert SausageTrousers wrote:
If it helps I have the same car on 65k miles and i've not had to top it up between oil changes (every 6k miles or so), I'm not sure if a litre in 5-6k is a problem though?



Really??????

Porsche says 600 miles per litre is fine. yes. 600. Mine does 1300 odd per litre, but then it gets driven properly Smile


I have been lucky enough to own nearly 20 Porsches over the years, only one of which has used oil heavily. It was an early 997s and getting through a litre every 800 miles. Porsche said it was within tolerance. I said bollocks. It turned out I was right - complete new engine replaced under warranty due to bore scoring a few thousand miles later.
 
  
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deMort
Long Beach


Joined: 21 Mar 2015
Posts: 6992
Location: Brighton


PostPosted: Tue Aug 06, 2019 6:46 pm    Post subject: Reply with quote

Please bear in mind .. what porsche say is acceptable oil usage was introduced when they had to repair these under warranty .. can't really comment further .

What they say is correct !
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