Member Since: 16 Apr 2008
Location: leicestershire
Posts: 267
How quickly does oil discolour
Just wondered, 'cos I checked my oil after service yesterday and looked quite dark, not amber like in the bottle. Probably done 50 miles since service
19th Nov 2009 11:16 am
Spooky
Member Since: 02 Jun 2009
Location: Swindon, Wilts
Posts: 1013
A diesel engine will turn its oil black fairly quickly, due to the carbon carry-over.Regards,
Mick
- 2014 SDV8 Autobiography
- 'Vincent' - 2010 TdV8 Vogue SE - 'Molly' - 2005 HSE Auto
'Dixie' - 2000 D2 Td5 ES
19th Nov 2009 11:23 am
PaulP
Member Since: 04 May 2007
Location: Barcelona
Posts: 4317
During my first service I was convinced that they hadn't changed the oil as it looked 'used' when I got it home after a 10km drive, but from what I can tell it's normal.... 2006 Discovery 3 TDV6 SE AutoBuckingham Blue 2007 Golf GT DSG
19th Nov 2009 12:20 pm
freebie2disco
Member Since: 01 Jan 2007
Location: wantage
Posts: 334
Just had my 45K mile service and had the same thing, checking that they had not over/under filled it I noticed the oil was already dark. But this was the third time this has happened so did not worry about it. Lease car so I have to take it on trust that they are doing the work as I never even see the bill/worksheet.
All I know is that there is some in there coz the car says so!Back in the game!
19th Nov 2009 1:46 pm
dick dastardly
Member Since: 29 May 2007
Location: wiggleigh bottom
Posts: 1112
Had this too. Just checked oil after driving home from garage (15km) and oil already black. Didnt trust the garage but they double checked and assured me that it had been changed. will invest in oil change pump kit and do it myself when warranty runs out.There's one wheel on my wagon, but i'm still rollin' along, it's the cherokee, they're after me, but I'm singing a happy song
19th Nov 2009 10:34 pm
crwoody
Member Since: 09 Mar 2009
Location: Littleborough
Posts: 2109
Always the same on all diesels I've ever had.
Trouble is, when the oil is drained out, there's always some left behind in the oil cooler and pipework etc. which immediately mixes with the new stuff, the carbon build-up in the oil is a pretty dense pigment (try getting splashes off your hands or clothes!) so it doesn't need much carry-over.Clive
19th Nov 2009 11:33 pm
stapldm
Member Since: 11 Sep 2006
Location: Swine Town
Posts: 2330
How quickly does it discolour? If it's doing it's job then it's colouring up within seconds the first time the engine is started.Dr. Ian Malcolm:
"Yeah, but your scientists were so preoccupied with whether or not they could, they didn't stop to think if they should."
Transgenic tomato anyone?
20th Nov 2009 5:58 am
Russell
Member Since: 24 Aug 2007
Location: Kent
Posts: 10564
The fact that it changes colour shows it is doing its job MY17 D5 1st Edition Namib Orange
MY15 D4 HSE Kaikoura Stone
MY12 D4 HSE Nara Bronze Sold and gone
MY11 D4 HSE Stornaway Grey Sold and gone
D3 S spec Silver Sold and gone
Tow bar, full length roof bars, side steps, tow bar storage unit, surround camers.
D4 camera club
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- 2014 SDV8 Autobiography
