sludge problem

klaudio · 08-13-2010, 09:34 AM

does any one know if a moderate sludge problem can be solved with out open the engine and clean it with acids???

F32Fleet · 08-13-2010, 10:27 AM

In the U.S. there are various engine cleaners which you dump into the oil sump , run the car at idle for 10-15 minutes, and then change the oil. In the old days people would do this using diesel fuel to their oil which did the same thing.

Today I've seen people recommend running shorter oil change intervals using a high quality synthetic (5,000 km?). Penzoil Ultra supposedly has good sludge cleaning abilities.

Good Luck!

742 · 08-13-2010, 03:12 PM

Go visit the VW/Audi forums. Search 1.8T and "sludge".

There is hope if you have not lost oil pressure.

ENINTY · 08-13-2010, 09:38 PM

1 qt Marvel's mystery oil.

klaudio · 08-22-2010, 10:49 PM

what about liqui moly, have any one try it yet???

08-13-2010, 09:34 AM	#1
klaudio Enlisted Member 2 Rep 42 Posts Drives: bmw z4m & range rover s/c Join Date: Mar 2008 Location: la toscana iTrader: (0)	sludge problem does any one know if a moderate sludge problem can be solved with out open the engine and clean it with acids???
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08-13-2010, 10:27 AM	#2
F32Fleet Lieutenant General 3570 Rep 10,351 Posts Drives: 2015 435i Join Date: May 2005 Location: Southeastern US iTrader: (0)	In the U.S. there are various engine cleaners which you dump into the oil sump , run the car at idle for 10-15 minutes, and then change the oil. In the old days people would do this using diesel fuel to their oil which did the same thing. Today I've seen people recommend running shorter oil change intervals using a high quality synthetic (5,000 km?). Penzoil Ultra supposedly has good sludge cleaning abilities. Good Luck!
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08-13-2010, 03:12 PM	#3
742 Major 13 Rep 1,187 Posts Drives: E90 325i; F10 528i; 2002tii Join Date: Apr 2006 Location: PA iTrader: (0)	Go visit the VW/Audi forums. Search 1.8T and "sludge". There is hope if you have not lost oil pressure.
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08-13-2010, 09:38 PM	#4
ENINTY Banned 173 Rep 3,415 Posts Drives: 2006 325i Sport Join Date: Jun 2006 Location: Virginia iTrader: (0)	1 qt Marvel's mystery oil.
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08-22-2010, 10:49 PM	#5
klaudio Enlisted Member 2 Rep 42 Posts Drives: bmw z4m & range rover s/c Join Date: Mar 2008 Location: la toscana iTrader: (0)	what about liqui moly, have any one try it yet???
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