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Discussion Starter · #1 · (Edited)
Diesel Brothers:

I have recently noticed carbon staining on my exhaust pipe. 36,000 miles.

Have any of you encountered similar evidence of hydrocarbon combustion?
 
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Discussion Starter · #2 ·
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Doesn't look like a "clean burning diesel" to me.


Sent from the sexy electrician
 

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Discussion Starter · #6 ·

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Doesn't look like a "clean burning diesel" to me.


Sent from the sexy electrician
Certainly a lot cleaner than the old diesels that's for sure. You know the ones, with a circle of black soot on their bumper around the pipe. ;)
 

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Doesn't look like a "clean burning diesel" to me.


Sent from the sexy electrician
I think it's plenty clean. Imagine what it would like like pre-2007.
 

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2014 Cruze Diesel, 2007 Cobalt, 1981 Camaro Z28, 2017 Volt
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Meh, plenty of cars, diesel or not, will encounter that. ****, the edge around the chrome tip on my Cobalt's exhaust is black.
 

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Wondering if those with lots of build up live in high humidity. The water out of the air goes somewhere, usually out the tail pipe as steam bringing some black stuff with it.
 

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My 2015 CTD tail pipe at about 1200km, cleaner than gasoline engines.

Sent from my SGH-I337M using Tapatalk
 
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Discussion Starter · #17 ·
Wondering if those with lots of build up live in high humidity. The water out of the air goes somewhere, usually out the tail pipe as steam bringing some black stuff with it.
Interesting. I'm in a high humidity area 45 degrees north proximate to the Great Lakes and the St Lawrence seaway.
 

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Hey, that is spotless compared to this BMW I saw today. Talk about nasty. I looked and this is a gasser.

 

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Discussion Starter · #19 ·
The ultimate polluting ​machine.
 
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