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Old 12-06-2004, 03:05 PM   #1
aspenwhitewrx
Scooby Newbie
 
Member#: 24965
Join Date: Sep 2002
Chapter/Region: SCIC
Location: Irvine
Vehicle:
2002 Impreza WRX
Aspen White

Default Advice needed re:Black Soot and fluids

Hi All,
I'm concerned about a layer of black soot with a green fringe on the firewall inside my engine bay(behind dp and tmic). I don't know if it is from an exhaust leak, but do any of you have this? It looks a little too dark to be dirt. I don't have a turboback exhaust leak, but it might be my up-pipe to turbo junction(up-pipe leak)?

Also, I'm getting my 30K service done soon and was wondering what the best tranny and rear diff fluid is to put in my car. Thanks all.
Scott
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Old 12-06-2004, 03:53 PM   #2
phattyduck
Scooby Specialist
 
Member#: 32955
Join Date: Feb 2003
Chapter/Region: SCIC
Location: Pasadena, CA
Vehicle:
'03 WRX Wagon
'89 3S-GTE Alltrac Camry

Default

The 'soot' is dirt that has been caught by the greasy stuff that Subaru puts on the firewall from the factory. Its pretty nasty, but you can clean it off there if you want. If you had an uppipe leak bad enough to get stuff on the firewall, you'd hear it every time you drove.

Easiest choice for fluids is stock... otherwise, start reading up - there are lots of opinions out there.

-Charlie
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Old 12-06-2004, 03:54 PM   #3
US2JDM
Scooby Guru
 
Member#: 5893
Join Date: Apr 2001
Chapter/Region: E. Canada
Location: Fairport, NY
Vehicle:
1997 Black GC4
1995 White BK6

Default

Sounds like a leaky uppipe gasket. Use the Subaru part, it seals great.

For the trans and diff fluid, I'd suggest using what the dealer uses while you're in the warranty period (to avoid warranty claims being denied down the line should the tranny go south).

W3rp!

-Milan
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Old 12-06-2004, 04:39 PM   #4
Psydotek
Scooby Guru
 
Member#: 44168
Join Date: Sep 2003
Chapter/Region: SCIC
Location: In your pant[ie]s.
Vehicle:
2003 Yellow WRX
with too many lights...

Default

Quote:
Originally Posted by phattyduck
The 'soot' is dirt that has been caught by the greasy stuff that Subaru puts on the firewall from the factory. Its pretty nasty, but you can clean it off there if you want. If you had an uppipe leak bad enough to get stuff on the firewall, you'd hear it every time you drove.

Easiest choice for fluids is stock... otherwise, start reading up - there are lots of opinions out there.

-Charlie
Hmmm, so that's what all that junk is... So it's totally harmless then, just really bad looking. 2 years, haven't cleaned that crap off once...

I'll get to it one day.
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