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#1
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Why is there tan sludge inside the oil cap?
I went to add oil today and the underside and top of the oil filler spout were quite full of a soft tan coloured sludge. I've never seen anything like it so I'm hoping someone here has an idea what it is.
The engine has about 4,000 km (2,500 mi) on it since since a complete rebuild. Thanks, Rod.
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Rod. '97 Ebony LSi #426, CDM (1 of 51 in '97), 185k km, rebuilt engine & transfer case; 22mm Bontrager RSB; 4300k HID 9006 bulbs SOLD '92 Ebony LS-L #6851, USDM (sold) '08 Forester (wife's) '06 STi (traded for the Forester) '94 Legacy wagon (sold) |
#2
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Re: Why is there tan sludge inside the oil cap?
It's moisture. More than likely from the change in season as the air temps warm up and a lot of moisture is in the air and makes it's way into the engine.
Just wipe it all off and don't worry about it |
#3
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Re: Why is there tan sludge inside the oil cap?
Thanks, that makes lots of sense -- the outside temps have been up and down all winter. Good call!
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Rod. '97 Ebony LSi #426, CDM (1 of 51 in '97), 185k km, rebuilt engine & transfer case; 22mm Bontrager RSB; 4300k HID 9006 bulbs SOLD '92 Ebony LS-L #6851, USDM (sold) '08 Forester (wife's) '06 STi (traded for the Forester) '94 Legacy wagon (sold) |
#4
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Re: Why is there tan sludge inside the oil cap?
It's also more likely to build up with shorter trips,
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Tim 92 Liquid Silver SVX 5MT 2009 BMW Z4 (Gone) 2012 Camry V6 SE |
#5
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Re: Why is there tan sludge inside the oil cap?
Man, you guys are good! My daily commute is only 7km each way, so right again!
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Rod. '97 Ebony LSi #426, CDM (1 of 51 in '97), 185k km, rebuilt engine & transfer case; 22mm Bontrager RSB; 4300k HID 9006 bulbs SOLD '92 Ebony LS-L #6851, USDM (sold) '08 Forester (wife's) '06 STi (traded for the Forester) '94 Legacy wagon (sold) |
#6
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Re: Why is there tan sludge inside the oil cap?
Yes you need to take it for a longer run to get the oil up to temp, to boil the water out of it.
Harvey.
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One Arm Bloke. Tell it like it is! 95 Lsi. Bordeaux Pearl, Aust. RHD.149,000Kls Subaru BBS wheels. 97 Liberty GX Auto sedan. 320,000Kls. 04 Liberty 30R Auto Premium. 92.000kls. |
#7
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Re: Why is there tan sludge inside the oil cap?
My Dad had a service station when I was a kid (this 50 years ago...) and I remember him talking doing an "Italian tune-up" on a customer's car -- which was to take it for a good high-speed run to clean it out.
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Rod. '97 Ebony LSi #426, CDM (1 of 51 in '97), 185k km, rebuilt engine & transfer case; 22mm Bontrager RSB; 4300k HID 9006 bulbs SOLD '92 Ebony LS-L #6851, USDM (sold) '08 Forester (wife's) '06 STi (traded for the Forester) '94 Legacy wagon (sold) |
#8
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Re: Why is there tan sludge inside the oil cap?
You need to do the same once in a while.
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. Earl .... ... .... ><SVX(*> Subaru Ambassador [COLOR=”silver”]1992 Tri Color L[/COLOR] ~45K (06/91) #2430 1992 Dark Teal LS-L ~184K (05/91) #0739 1992 Claret LS-L ~196K (05/91) #0831 1992 Pearl LS-L ~103K (06/91) #1680 1992 Pearl LS-L ~151K (06/91) #2229 1992 Dark Teal LS ~150K (07/91) #3098 (parts car) 1992 White LS-L ~139K (08/92) #6913 1993 25th AE ~98K (02/93) #164 1993 25th AE ~58K (02/93) #176 1993 25th AE ~107K (02/93) #215 1993 25th AE ~162K (02/93) #223 1994 Laguna Blue Pearl LSi ~124K (1/94) #2408 1994 Laguna Blue Pearl LSi ~144K (10/93) #1484 1994 Laguna Blue Pearl LSi ~68K (10/93) #1525 1994 Barcelona Red LSi ~46K (02/94) #2624 1994 Pearl LSi ~41K (12/93) #1961 1995 Bordeaux Pearl LSi ~70K (02/95) #855 1996 Polo Green LSi ~95K (03/96) #872 1997 Bordeaux Pearl LSi ~55K (08/96) #097 2003 Brilliant Red LS1 Convertible ~29K (04/03) #8951 1999 Magnetic Red LS1 Coupe ~33K (04/99) #6420 My Email | Old Locker | New Locker | Picture of 15 of the 19 |
#9
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Re: Why is there tan sludge inside the oil cap?
Just got back! Beautiful early spring day, so why not take advantage?
Stopped by NAPA on the way back for an oil filter. The one I've seen recommended here -- Purolator L30165 -- is $45 so I settled for a K&N HP 4001 for half of that. Not surprising, there's none in stock but it'll be here Wesdesday. Picked up 7qts of Amsoil 5W-30 at the local hardware store, so all I need now is a hoist.
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Rod. '97 Ebony LSi #426, CDM (1 of 51 in '97), 185k km, rebuilt engine & transfer case; 22mm Bontrager RSB; 4300k HID 9006 bulbs SOLD '92 Ebony LS-L #6851, USDM (sold) '08 Forester (wife's) '06 STi (traded for the Forester) '94 Legacy wagon (sold) |
#10
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Re: Why is there tan sludge inside the oil cap?
Quote:
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http://i840.photobucket.com/albums/z...93705d9zzz.png |
#11
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Re: Why is there tan sludge inside the oil cap?
I used to know a girl who changed her own oil by driving two wheels up on the curb.
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Chris 92 Ebony Mica LS-L "A Rolling Restoration": 223,250 KM - Sleeping 2007 STi 6MT, Stance GR+ coilovers, PWR Rad, JDM hood badge, svxfiles 6000K HIDs, JDM Clear Corners, $15/15 min mod, $20/20 min mod, Energy Swaybar Bushings, Hella Supertones horns, Gold STi BBS rims, Group A lightweight crank pulley, A/C system removed, Custom header-back exhaust, Hybrid carbon/metal rear sway bar, restored headlights with CCFL halos 2008 Subaru Legacy Spec B - Diamond Grey Metallic - Sold 2020 Ram 1500 Longhorn - Red Pearl |
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