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Black sludge in oil cap?! Does anyone know if this is normal?? : r/G35
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Tested engines】 Used engine checkpoints ～ engine sludge ～ – Used Engines/Used Auto Parts from Japan!
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Tan / Yellow Sludge Pudding Under Oil Fill Cap | VW Audi 2.0T - YouTube
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1998 ES300 first oil change! (Found sludge under oil fill cap?) - ClubLexus - Lexus Forum Discussion
sludge under oil filler cap - BMW 1 Series Coupe Forum / 1 Series Convertible Forum (1M / tii / 135i / 128i / Coupe / Cabrio / Hatchback) (BMW E82 E88 128i 130i 135i)
slight water condensation / slight amount of spooge inside oil filler cap? | Cadillac Owners Forum
Sludge on oil cap | Cummins Diesel Forum
Oil Fill Pics - Crud Buildup - ClubLexus - Lexus Forum Discussion
Sludge on oil Cap - LS1TECH - Camaro and Firebird Forum Discussion
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What is this sludge on my oil cap? - 6SpeedOnline - Porsche Forum and Luxury Car Resource
Oil cap sludge. | Abarth 500 | The FIAT Forum
Oil Sludge Build-Up In My Car's Engine | USA Automotive
White sludge under oil cap | 2016+ Honda Civic Forum (10th Gen) - Type R Forum, Si Forum - CivicX.com
Oil Cap residue - MBWorld.org Forums
Brown sludge in oil cap | BimmerFest BMW Forum
Gummy Oil Buildup on Oil Cap (pics) - BMW 1 Series Coupe Forum / 1 Series Convertible Forum (1M / tii / 135i / 128i / Coupe / Cabrio / Hatchback) (BMW E82 E88 128i 130i 135i)
What Is the White Stuff Under Your Oil Cap? | The Drive
