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#4579627 - 11/19/17 11:11 PM Color of oil
davizzel Offline


Registered: 11/17/17
Posts: 29
Loc: Illinois
Hello Guys,

This might be a dumb question, after performing an oil chnage this weekend. I was pouring the new oil into my vehicle, when my curiosity kicked in. The oil I drained out, looks nothing like the oil I poured in, obviously the oil somewhat cleans the engine Iím assuming. But, should my car oil be a dark brown color? Or should it be close to the rich gold liquid I poured in during my last oil chnage. Again, I apologize if this is a silly question, but the more I read on this site, the less I realize I know! Btw my OCI is about 5k miles.

Thanks!

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#4579631 - 11/19/17 11:14 PM Re: Color of oil [Re: davizzel]
JustN89 Offline


Registered: 06/27/17
Posts: 465
Loc: DFW
Yep, perfectly normal. Your oil cleans, but it also traps dirt and other debris and ferries it to the oil filter where the filter holds on to it until an OCI is performed. Over time, this darkens the oil and commonly becomes varying shades of dark brown.

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#4579633 - 11/19/17 11:21 PM Re: Color of oil [Re: davizzel]
dishdude Offline


Registered: 11/14/08
Posts: 8736
Loc: Phoenix
Goes in looking like honey, comes out looking like poo.
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2018 Challenger SRT

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#4579655 - 11/20/17 12:33 AM Re: Color of oil [Re: davizzel]
FordCapriDriver Offline


Registered: 10/22/15
Posts: 2379
Loc: Balearic Islands , Spain
Perfectly normal.
_________________________
1975 Ford Capri II Ghia 3000 V6, - Valvoline VR1 20W-50
1988 Ford Escort MkIV 1.6 Xr3i Cabrio, - Shell Rimula R4X 15W-40 HDEO.

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#4579664 - 11/20/17 01:37 AM Re: Color of oil [Re: davizzel]
jakewells Offline


Registered: 12/28/12
Posts: 468
Loc: Cave City KY
golden honey in and chocolate syrup out.
_________________________
1994 Ford F150 302 4R70
Chevron Delo SAE 30 CF/SL Fram XG8A
1978 Chevy Nova 250 I6 3 on the tree.
Rotella 10W40 Fram TG30


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#4579749 - 11/20/17 06:17 AM Re: Color of oil [Re: davizzel]
kr_bitog Offline


Registered: 10/06/07
Posts: 884
Loc: South East Asia
I beg to differ on this one... if you put on diesel car, my understanding it goes black almost immediately.
However on gasoline engine, I find the color change is progressing slowly

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#4579774 - 11/20/17 06:53 AM Re: Color of oil [Re: davizzel]
Virtus_Probi Offline


Registered: 06/25/15
Posts: 3970
Loc: New England
Seems like my oil get dark really quickly...I've assumed that's because of the hot turbo, but I guess I don't really know what the reason is.
_________________________
2014 Forester XT, 80500 miles
Last Change;
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#4579814 - 11/20/17 07:49 AM Re: Color of oil [Re: davizzel]
Donald Offline


Registered: 03/21/04
Posts: 20450
Loc: Upstate NY
Normal on a gas vehicle.
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2015 Subaru Forester 2.5 engine/CVT
2015 Ford F250 w/Powerstroke
2016 Subaru Crosstrek CVT (wife's)


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#4579905 - 11/20/17 09:54 AM Re: Color of oil [Re: kr_bitog]
code5coupe Offline


Registered: 05/17/04
Posts: 39
Loc: Poway, CA
Originally Posted By: kr_bitog
I beg to differ on this one... if you put on diesel car, my understanding it goes black almost immediately.
However on gasoline engine, I find the color change is progressing slowly

"Slowly" is a relative term. By the time 3000 miles has been put on an engine's oil, it will have become noticeably darker.

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#4579910 - 11/20/17 10:01 AM Re: Color of oil [Re: davizzel]
HondaBroMike Offline


Registered: 11/02/17
Posts: 312
I love it when a UOA matches what you predicted how long the TBN would last and predict it to a T. I prefer oil to go in looking light beige and come out, well I use the napkin test and if it black on it, it's time for a change as far as wear goes but TBN could still be there, that is why it is not accurate to go by color when coming out.


Edited by HondaBroMike (11/20/17 10:02 AM)
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#4579912 - 11/20/17 10:03 AM Re: Color of oil [Re: davizzel]
HondaBroMike Offline


Registered: 11/02/17
Posts: 312
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#4579943 - 11/20/17 10:28 AM Re: Color of oil [Re: kr_bitog]
WyrTwister Offline


Registered: 01/13/13
Posts: 1512
Loc: Texas
Originally Posted By: kr_bitog
I beg to differ on this one... if you put on diesel car, my understanding it goes black almost immediately.
However on gasoline engine, I find the color change is progressing slowly


I do not know personally , but I have read it darkens quickly in a diesel from the black soot / carbon ?
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Wyr
God bless

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#4579952 - 11/20/17 10:38 AM Re: Color of oil [Re: WyrTwister]
Nick1994 Online   content


Registered: 02/19/13
Posts: 10099
Loc: Phoenix, AZ
Originally Posted By: WyrTwister
Originally Posted By: kr_bitog
I beg to differ on this one... if you put on diesel car, my understanding it goes black almost immediately.
However on gasoline engine, I find the color change is progressing slowly


I do not know personally , but I have read it darkens quickly in a diesel from the black soot / carbon ?

I had a VW TDI and would pour out black oil, pour in clean oil, start it up and check it and it would be almost jet black. After 50 miles or so it would be completely jet black.
_________________________
2015 Hyundai Sonata 2.4L 79k PU 5w30 & OEM
2000 Toyota Camry 2.2L 228k M1 AFE 0w30 & Wix
1996 Jeep Cherokee 4.0L 146k M1 HM 10w40 & Fram Ultra

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#4579954 - 11/20/17 10:41 AM Re: Color of oil [Re: davizzel]
WyrTwister Offline


Registered: 01/13/13
Posts: 1512
Loc: Texas
So , assuming the black is carbon soot , I guess it does not hurt anything ?

I personally have next to no diesel experience .
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Wyr
God bless

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#4579975 - 11/20/17 11:02 AM Re: Color of oil [Re: davizzel]
Panzerman Offline


Registered: 12/16/06
Posts: 4203
Loc: Port Orange, Florida
Nothing turns blacker than Castrol GTX conventional oil.
Not saying it's good or bad but it's always the blackest.
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2006 Dodge Ram 2500 Hemi 4x4
2016 Dodge Challenger Scat Pack

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