Black "soot" on tailpipe

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March-1st-2008, 05:25 PM

L3VZoomZooom

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Join Date: Dec 2006

Location: Maryland

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Black "soot" on tailpipe

Has any else had a black "soot" on their tailpipe. my exhaust system is stock. My only mod is a CAI. The "soot" was there pre intake.

March-1st-2008, 07:33 PM

DEm

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Location: Hermosillo Sonora Mexico

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hu? you mean a rainbow-like-stain??? i do....

March-2nd-2008, 07:19 PM

L3VZoomZooom

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If you mean multi- color, then no. It is black and soot like. I have seen it MX-5s 3's (2.0&2.3) . I have asked the dealer no clue. When say rainbow are you talking about over heating the metal?

March-2nd-2008, 09:15 PM

ivo

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Join Date: Oct 2005

Location: California

Posts: 175

Every car has it. I've noticed the bigger the pipe the more of if you'll see. I don't know why is it there but it's normal. Just clean it once in a while and don't worry about it.

March-3rd-2008, 01:39 AM

DEm

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Join Date: Jun 2006

Location: Hermosillo Sonora Mexico

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Quote:

Originally Posted by L3VZoomZooom

If you mean multi- color, then no. It is black and soot like. I have seen it MX-5s 3's (2.0&2.3) . I have asked the dealer no clue. When say rainbow are you talking about over heating the metal?

yup its from heat, the black one ist probably just charcoal, easily cleaned

March-11th-2008, 01:14 PM

SilverMS3

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Location: Minnesota

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SilverMS3 is an unknown quantity at this point

Mazda's are notorious for running rich. That's why the black soot appears. Especially if you have a Speed3. I can clean mine and have black soot covering the exhaust tip a day later.