Brown sludge in oil catch can

Maniac0908 · 12-12-2017, 07:25 PM

Hello, so i was changing my oil yesterday and noticed brown stuff on the cap. Read online it could just be foam from not driving long distance. Then i pulled the catch can off and this light brown mud was in there. Mostly at the very bottom. Any ideas? Pics attached

BashShah · 12-12-2017, 07:41 PM

ummm.... first guess coolant mixing with oil.
check your OFHG or VCG

Maniac0908 · 12-12-2017, 07:55 PM

Quote:

Originally Posted by DarkNemesis

ummm.... first guess coolant mixing with oil.
check your OFHG or VCG

Damn.....after I changed both.....would happen to me. Thanks man

TheeGovernor · 12-12-2017, 08:06 PM

Nothing to worry about. Its common for a catch can to have a water oil mixture like this.

Maniac0908 · 12-13-2017, 04:44 AM

Quote:

Originally Posted by TheeGovernor

Nothing to worry about. Its common for a catch can to have a water oil mixture like this.

What about on top of my oil cap?

TheeGovernor · 12-13-2017, 09:46 AM

Quote:

Originally Posted by Maniac0908

What about on top of my oil cap?

Short trips. Did you buy chance remove the insulation under the engine cover as well?

Maniac0908 · 12-13-2017, 07:00 PM

I took the whole engine cover off. I saw no use for it. Was I wrong?

TheeGovernor · 12-14-2017, 11:28 AM

Quote:

Originally Posted by Maniac0908

I took the whole engine cover off. I saw no use for it. Was I wrong?

Think about it. The insulation lets the top part of the valve cover get hot enough to boil off the oil and water vapor so you dont get things like sludge on the oil cap.

Sgop335 · 12-14-2017, 06:35 PM

I dont have insulation, cover whatever as long as i remember. No issues, i can post a pic. So its not that

Maniac0908 · 12-14-2017, 07:20 PM

I'm going to run this oil for 500miles then send oil sample off to Blackstone for analysis

TheeGovernor · 12-15-2017, 06:15 AM

Quote:

Originally Posted by Sgop335

I dont have insulation, cover whatever as long as i remember. No issues, i can post a pic. So its not that

Well I took it off and had short trips and this happened to me so.

ECSTuning · 12-15-2017, 11:13 AM

As you read, looks pretty normal for short trips. Example from one of our shop car catch cans after a month or so of only being used for short trips.

12-12-2017, 07:25 PM	#1
Maniac0908 Major 167 Rep 1,416 Posts Drives: Alpine White 07 335xi Sedan Join Date: Feb 2013 Location: Towson, MD iTrader: (2)	Brown sludge in oil catch can Hello, so i was changing my oil yesterday and noticed brown stuff on the cap. Read online it could just be foam from not driving long distance. Then i pulled the catch can off and this light brown mud was in there. Mostly at the very bottom. Any ideas? Pics attached Attached Images __________________ 2007 335XI SEDAN // JB4 G5 // BMS METH KIT // VRSF DOWNPIPES // AFE DCI // ER CP W/ TIAL BOV // MMP SILICONE INLETS // XHP STAGE 3 AT FLASH // TREBILA BEF // BMS OCC // VRSF EXHAUST // FUEL-IT STAGE 2 LPFP // VRSF FMIC // PRECISION RACEWORKS IGNITION SYSTEM // CATUNED COILOVERS // CIC AND COMBOX RETROFIT //
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12-12-2017, 07:41 PM	#2
BashShah Colonel 295 Rep 2,015 Posts Drives: 2012 335i Sedan Join Date: Oct 2012 Location: Vancouver, Canada iTrader: (0)	ummm.... first guess coolant mixing with oil. check your OFHG or VCG
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12-12-2017, 08:06 PM	#4
TheeGovernor Life is better with burnouts 96 Rep 611 Posts Drives: BMW Join Date: Dec 2011 Location: Mile High iTrader: (4) Garage List 1996 Toyota Forklift [0.00] 2007 BMW 335i [0.00]	Nothing to worry about. Its common for a catch can to have a water oil mixture like this.
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12-13-2017, 07:00 PM	#7
Maniac0908 Major 167 Rep 1,416 Posts Drives: Alpine White 07 335xi Sedan Join Date: Feb 2013 Location: Towson, MD iTrader: (2)	I took the whole engine cover off. I saw no use for it. Was I wrong?
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12-14-2017, 06:35 PM	#9
Sgop335 Colonel 648 Rep 2,011 Posts Drives: 07 335i e92, 08 535i Join Date: Jun 2014 Location: MD iTrader: (1)	I dont have insulation, cover whatever as long as i remember. No issues, i can post a pic. So its not that __________________ 335i e92 TPC 19Ts
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12-14-2017, 07:20 PM	#10
Maniac0908 Major 167 Rep 1,416 Posts Drives: Alpine White 07 335xi Sedan Join Date: Feb 2013 Location: Towson, MD iTrader: (2)	I'm going to run this oil for 500miles then send oil sample off to Blackstone for analysis
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12-15-2017, 11:13 AM	#12
ECSTuning New Lifetime Replacement Policy 811 Rep 11,738 Posts Drives: Independent Tuning Specialists Join Date: Jul 2008 Location: Ohio iTrader: (18)	As you read, looks pretty normal for short trips. Example from one of our shop car catch cans after a month or so of only being used for short trips.
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