black powder on exhaust pipes

jahdhami · 02-28-2011, 01:49 PM

what is the black stuff on my exhaust pipes? is it coming from the engine oil or fuel?

thanks,

ES_TRADER · 02-28-2011, 01:55 PM

Quote:

Originally Posted by SehrSchnell

Are you retarded?

+1

jahdhami · 02-28-2011, 02:00 PM

excuse my lack of knowledge, i was just wondering since i always tend to see it especially after cleaning it.

Georgeair · 02-28-2011, 02:00 PM

Quote:

Originally Posted by jahdhami

black power on exhaust pipes

Turn in your keys. Seriously.

radiantm3 · 02-28-2011, 02:00 PM

I have noise coming out of mine. Think I should take it in to get checked out?

TxFeatFan · 02-28-2011, 02:17 PM

Fuels (hydrocarbons) combine with oxygen in the air, burning (oxidizing) to form CO, CO2 and Water, mostly, but the combustion is rarely complete.

The black powder is mostly just carbon that hasn't combusted with O2 to form CO and CO2.

SchnellM3 · 02-28-2011, 03:33 PM

Quote:

Originally Posted by Georgeair

Turn in your keys. Seriously.

Where's the thread about top ten dumbest questions? Possibly a top 5 candidate here

persian54 · 02-28-2011, 03:47 PM

you guys are mean lol

aajami · 02-28-2011, 03:52 PM

The guy asks a simple question and is verbally insulted. C'mon...

I'm willing to bet most people actually don't know the details behind the process that leaves carbon deposits in and around our exhausts.

PKL · 02-28-2011, 03:55 PM

The reason this thread got NO serious love is because it says "Black Power" in the title, yo

eisenb11 · 02-28-2011, 03:56 PM

Quote:

Originally Posted by aajami

The guy asks a simple question and is verbally insulted. C'mon...

I'm willing to bet most people actually don't know the details behind the process that leaves carbon deposits in and around our exhausts.

Exactly, it's a legit question. If they want to be helpful, someone could also volunteer how to get rid of it since that's probably is why the OP is asking anyways.

I'd also like to know the answer to that. I've been trying Never Dull on the outside of my pipes, but nothing I've tried yet seems to get the carbon off the ends of them.

TxFeatFan · 02-28-2011, 03:59 PM

Quote:

Originally Posted by eisenb11

Exactly, it's a legit question. If they want to be helpful, someone could also volunteer how to get rid of it since that's probably is why the OP is asking anyways.

I'd also like to know the answer to that. I've been trying Never Dull on the outside of my pipes, but nothing I've tried yet seems to get the carbon off the ends of them.

Soap and water works fine for me - just a normal part of washing the car.

Georgeair · 02-28-2011, 04:02 PM

Quote:

Originally Posted by aajami

The guy asks a simple question and is verbally insulted. C'mon...

I'm willing to bet most people actually don't know the details behind the process that leaves carbon deposits in and around our exhausts.

Oh give me a bleediing-heart break. It's not a simple question, it's a simpleton question or a troll.

It's a car exhaust. WTF is so hard for anyone over the age of 4 to understand about what is going to be in the area of the exhaust. Exhaust. Not knowing the chemical properties or reactions involved doesn't mean it's a question for anyone but a simpleton. Or a troll.

I'd get the same insults and berating if I asked a similar question. Let me show you a few:

What are the specks of things on the front bumper after driving?
What are the stone-like things on my tire tread?
When it rains, why is there dirt on my windshield in the areas not wiped?
When I pore water on my car, why does it get wet?

Being from Oman, I'd almost give him credit for a lanquage issue but his English seems better than many of my neighbors so I don't think that's it. He didn't ask how to clean it. He didn't ask how to make it less or more. He asked what was making the area of his exhaust black.

Now, if he posts a picture of the entire rearend coated in oil residue, I'll feel really bad as we sort out that he's got a differential leak, or is burning HUGE amounts of oil.

esquire · 02-28-2011, 04:02 PM

this made my day.

Grail05 · 02-28-2011, 04:03 PM

wow so harsh.... chillax guys ...

PrePharm · 02-28-2011, 04:03 PM

Use fine steel wool for the black stuff; use antibacterial soap for the white stuff

lve2xlr8 · 02-28-2011, 04:06 PM

Quote:

Originally Posted by Georgeair

Nautik · 02-28-2011, 04:33 PM

I don't know if the OP is trolling... He is from Oman and he misspelled pow(d)er which obviously resulted in an interesting title!

Technic · 02-28-2011, 04:56 PM

I think that the OP is asking why the E9x M3 exhausts shows so much black powder residue in the exhaust tips compared to other cars from 2003 and back...

Sometimes it is not just powder, but a black paste.

The answer could be the changes in emission laws after 2004, the reduction of sulfur from gasoline, the Phase II LEV standards, chemical composition of the new catalytic converters, new cold start procedures for the rapid warm up of those cats, and so on. The fact is that having this much black powder residue was not that common in most cars before 2004.

It really looks like the engine is burning oil in excess.

For sure, my 2004 E46 M3 exhaust tips did not have this much -if any that I can remember- black powder residue, but my 2007 VW GTI did and a lot. That GTI was my first car that I had to be cleaning the exhausts tips this much at the same time as washing it, that never happened before. My old 2008 Passat and my current 2010 CC also show this concentrated black paste in the exhausts.

FSHNGRY · 02-28-2011, 06:14 PM

Quote:

Originally Posted by SehrSchnell

Are you retarded?

Quote:

Originally Posted by radiantm3

I have noise coming out of mine. Think I should take it in to get checked out?

jonasaurus · 02-28-2011, 06:23 PM

Poor guy got beat down! Presumably there was a valid question behind it all?

JCE · 02-28-2011, 07:33 PM

Quote:

Originally Posted by jahdhami

excuse my lack of knowledge, i was just wondering since i always tend to see it especially after cleaning it.

So it is worse after you clean it? I suggest never washing your car again.

02-28-2011, 01:49 PM	#1
jahdhami Enlisted Member 9 Rep 37 Posts Drives: E92 M3 Join Date: Apr 2010 Location: Oman iTrader: (0)	black powder on exhaust pipes what is the black stuff on my exhaust pipes? is it coming from the engine oil or fuel? thanks,
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02-28-2011, 02:00 PM	#3
jahdhami Enlisted Member 9 Rep 37 Posts Drives: E92 M3 Join Date: Apr 2010 Location: Oman iTrader: (0)	excuse my lack of knowledge, i was just wondering since i always tend to see it especially after cleaning it.
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02-28-2011, 02:00 PM	#5
radiantm3 Apex Everything! 976 Rep 4,378 Posts Drives: 2007 Honda S2000, 2017 GT350 Join Date: Sep 2008 Location: Cedar Park, TX iTrader: (6) Garage List 2011 E92 M3 [9.35] 2014 BMW i3 [10.00]	I have noise coming out of mine. Think I should take it in to get checked out? __________________ 2011 E92 M3(Sold). 2007 Honda S2000 (Track Car). 2016 Cayman GT4 (Sold). 2017 Shelby GT350 (AKA Crowd Killer). My pet project: https://stickershift.com
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02-28-2011, 02:17 PM	#6
TxFeatFan Captain 484 Rep 929 Posts Drives: 2024 M4 Convertible Join Date: Jul 2010 Location: Los Alamos, NM iTrader: (0) Garage List 2024 G83 M4 [10.00] 2017 F80 M3 [10.00]	Fuels (hydrocarbons) combine with oxygen in the air, burning (oxidizing) to form CO, CO2 and Water, mostly, but the combustion is rarely complete. The black powder is mostly just carbon that hasn't combusted with O2 to form CO and CO2. __________________ ————————————————————————————————————— 2024 Tanzanite Blue II M4 Convertible
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02-28-2011, 03:47 PM	#8
persian54 Lieutenant General 923 Rep 15,818 Posts Drives: M760/G83M4 Join Date: Jun 2009 Location: The Valley, SoCal iTrader: (298)	you guys are mean lol __________________ From E93 335i to E89 Z4 to E93 M3/E89 Z4 to E350/SL550
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02-28-2011, 03:52 PM	#9
aajami Brigadier General 432 Rep 4,567 Posts Drives: Space Gray '09 E92 M3 Join Date: Dec 2008 Location: Manhattan Beach, CA iTrader: (4)	The guy asks a simple question and is verbally insulted. C'mon... I'm willing to bet most people actually don't know the details behind the process that leaves carbon deposits in and around our exhausts. __________________ '09 E92 M3: Space Gray, Black, Carbon Leather \| ZTP 2MK ZPP 2MT 6FL \| link 1 / link 2 Mods: M Performance exhaust \| ZCP retrofit \| Euro airbox \| GTS DCT flash \| JPN 240 ECU flash \| Euro LCI taillights \| CRT lip \| OEM alarm retrofit \| Space Gray bumper plugs \| BMW Performance: Mk. II spoiler / Mk. II non-electronic steering wheel / mirror caps / front grilles / side gills / intake louvers / emblem
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02-28-2011, 03:55 PM	#10
PKL Brigadier General 848 Rep 3,274 Posts Drives: 2020 M4, 2022 X6 Join Date: Oct 2008 Location: San Fernando Valley iTrader: (1)	The reason this thread got NO serious love is because it says "Black Power" in the title, yo __________________
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02-28-2011, 04:02 PM	#14
esquire Brigadier General 478 Rep 3,044 Posts Drives: 2011 Dakar Yellow M3, 2018 M5 Join Date: Feb 2007 Location: Orange County, California iTrader: (0)	this made my day. __________________ [ESS VT2-625] [Akrapovic Evolution Exhaust] [KW Clubsports] [OSS Angel Eyes] [Revinora r-CRT Lip] [Vorsteiner Boot] [Challenge Race Diffuser] [See the Build Thread HERE]
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02-28-2011, 04:03 PM	#15
Grail05 Putcha ang ganda... 281 Rep 5,441 Posts Drives: 17 F82 M4 Join Date: Feb 2010 Location: Los Angeles, Brea CA. iTrader: (10)	wow so harsh.... chillax guys ... __________________
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02-28-2011, 04:03 PM	#16
PrePharm Second Lieutenant 25 Rep 244 Posts Drives: '09 White M3 Coupe M-DCT Join Date: Aug 2009 Location: Clovis, Ca iTrader: (1)	Use fine steel wool for the black stuff; use antibacterial soap for the white stuff
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02-28-2011, 04:33 PM	#18
Nautik Captain 37 Rep 636 Posts Drives: 2009 AW M3 DCT Join Date: May 2010 Location: NoVA iTrader: (0)	I don't know if the OP is trolling... He is from Oman and he misspelled pow(d)er which obviously resulted in an interesting title! __________________ 2009 e92 M3 - AW DCT - Apex Arc8s - Corsa
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02-28-2011, 04:56 PM	#19
Technic Lieutenant General 2288 Rep 13,001 Posts Drives: 2021 i3S, 2024 i4 M50 Join Date: Apr 2005 Location: Florida iTrader: (18)	I think that the OP is asking why the E9x M3 exhausts shows so much black powder residue in the exhaust tips compared to other cars from 2003 and back... Sometimes it is not just powder, but a black paste. The answer could be the changes in emission laws after 2004, the reduction of sulfur from gasoline, the Phase II LEV standards, chemical composition of the new catalytic converters, new cold start procedures for the rapid warm up of those cats, and so on. The fact is that having this much black powder residue was not that common in most cars before 2004. It really looks like the engine is burning oil in excess. For sure, my 2004 E46 M3 exhaust tips did not have this much -if any that I can remember- black powder residue, but my 2007 VW GTI did and a lot. That GTI was my first car that I had to be cleaning the exhausts tips this much at the same time as washing it, that never happened before. My old 2008 Passat and my current 2010 CC also show this concentrated black paste in the exhausts.
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02-28-2011, 06:23 PM	#21
jonasaurus Brigadier General 76 Rep 3,178 Posts Drives: E90 M3 [Sold] Join Date: Oct 2010 Location: NYC iTrader: (0)	Poor guy got beat down! Presumably there was a valid question behind it all? __________________ ///M3 \| E90 LCI \| Space Grey \| Fox Red with CF Structure \| 6MT \| 260M \| My build
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