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Re: 997.2 tailpipe soot
ADias:
I'm getting reports of excessive tailpipe soot on 997.2s, especially Carrera S.
Could new 997.2 owners comment? Also oil consumption. Please include in your replies current miles.
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A. Dias
Corvette C6 coupe (sold)
996 C4 (sold)
Soot yes! The brushed steel (as opposed to shiny chrome) finish of the pipes doesn't help cleaning either. I will fit the sport exhaust with the black pipes anyway, and soot will not show much.
Oil consumption is noticeable. 1.5+ litres in 3000 kms. The manual says that during running-in higher consumption will be experienced. However, they state up 1.5 lts/1000kms is normal! Perhaps if you spend hours at 6500rpm!
The OPC also says it will gradually go down. I remember that the turbos always have had this initial oil consumption.
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It's not where you're going, it's how you get there that counts
Feb 19, 2009 11:01:56 AM
- Porsche-Jeck
- Rennteam Master
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- Loc: Rheinland , Germany
- Posts: 4856, Gallery
- Registered on: Jun 27, 2005
- Reply to: ADias
Re: 997.2 tailpipe soot
The soot is a "feature" of DFI-engines (not only Porsche engines). I know of two cases where piston rings had to be replaced due to excessive oil consumption (1.5 L/1000 km without track abuse). 0.3-0.6 L/1000 km seems to be the norm during break-in - should gradually decrease after a couple of thousand km.
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: Porsche 997 GT3 Arctic/Black
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public roads: Porsche 987 S Seal/Cocoa, toll road
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Feb 19, 2009 12:02:48 PM
- Spyderidol
- Rennteam Master
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- Loc: Mozambique
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- Registered on: Apr 25, 2007
- Reply to: Porsche-Jeck
Re: 997.2 tailpipe soot
Is this from oil or is it caused by fuel?
I ask this because the DFI engines in the RS Spyders were negatively effected by the fuel provided in the ALMS and asked the officials to increase the detergent level in order to overcome this problem.
BTW - One could see heavy "grey" soot marks on the RS Spyders after their first race ( before more detergent was added to the fuel)
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