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wacken Guest
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26-07-2003, 0:18 Subject: Oil Paint: Types, Techniques & How To Use It |
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Hello, my 2.0 TDI has now been driven for about 2500 km, and the oil is still slightly yellowish. Isn't it supposed to turn black, at least with a diesel engine?
Best regards,
Translated on 19-08-2026, 19:40.
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Julian Guest
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26-07-2003, 18:51 Subject: Oil Paint: Types, Techniques & How To Use It |
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It depends on the amount of soot. Mine in my 8E was initially yellowish, but after about 4000 km it became a bit darker.
Translated on 19-08-2026, 19:41.
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Bertil Profi-Schrauber

Joined: 04/15/2002 Posts: 5628 Karma: +108 / -0
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26-07-2003, 21:14 Subject: Oil Paint: Types, Techniques & How To Use It |
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Hi,
The newer engines seem to have a significantly lower amount of combustion gas entering the oil compared to the older ones. Even with my AXR engine, it took about 3000 km after replacing the head gasket for the oil to become darker.
Considering Julian's experience, I would classify this as "normal." Gruß Bertil
Skoda 5E5 CZDA + Mini R50 W10 + VW ID.3 + Fiat Ducato 250 + 161 DX
*** Technische Anfragen per PN werden von mir nicht beantwortet! ***
Translated on 19-08-2026, 19:42.
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wacken Guest
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26-07-2003, 21:24 Subject: Oil Paint: Types, Techniques & How To Use It |
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That's reassuring; I was worried something might be wrong. And since I'm going away next week, not too far but still a few hundred kilometers on the highway, I was concerned that something might break if I drive a bit faster because of an underlying issue.
Best regards,
Translated on 19-08-2026, 19:43.
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Avenga Guest
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27-07-2003, 15:14 Subject: Oil Paint: Types, Techniques & How To Use It |
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'After the oil change, our car's oil immediately turned pitch black again. I thought the workshop might have ripped us off, is that possible? It wasn't even slightly yellow.'
Translated on 19-08-2026, 19:43.
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wacken Guest
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27-07-2003, 15:18 Subject: Oil Paint: Types, Techniques & How To Use It |
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That's normal, which is why I asked my question. The oil always turns black again, and that's a good sign. The 'dirt' remains suspended and doesn't settle anywhere; some old oil also remains after an oil change. That's why I wanted to know how long it takes for the oil in a new car to actually turn black.
Best regards,
Translated on 19-08-2026, 19:44.
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Julian Guest
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27-07-2003, 16:32 Subject: Oil Paint: Types, Techniques & How To Use It |
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Could you not have already recognized that with your A4? 
Translated on 19-08-2026, 19:44.
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wacken Guest
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27-07-2003, 16:41 Subject: Oil Paint: Types, Techniques & How To Use It |
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Unfortunately, I don't remember what it was like there anymore.
Best regards,
Translated on 19-08-2026, 19:45.
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Julian Guest
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27-07-2003, 17:28 Subject: Oil Paint: Types, Techniques & How To Use It |
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Hey...is Alzheimer already this advanced? 
Translated on 19-08-2026, 19:45.
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wacken Guest
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27-07-2003, 17:31 Subject: Oil Paint: Types, Techniques & How To Use It |
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What is Alzheimer's disease?
I didn't really pay attention to that with the A4; I just checked the oil level, and I probably didn't notice the color back then.
Best regards,
Translated on 19-08-2026, 19:45.
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Tom1969 Guest
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21-03-2004, 15:03 Subject: Oil Paint: Types, Techniques & How To Use It |
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Our SDI had black, tar-like oil again immediately after the oil change; I thought the workshop might have ripped us off, is that possible? Not even a little bit yellow.
Hello,
What was the mileage on the engine?
The day after the inspection, I checked the oil level in my Passat TDI PD (115 hp, 130,000 km) – and the (new?) oil was already pitch black again! According to Volkswagen, this is normal...
Can other forum members share their experiences on this topic?
Regards,
Tom.
Translated on 19-08-2026, 19:47.
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Steffarn Profi-Schrauber


Joined: 09/17/2003 Posts: 632 Karma: +3 / -0
2003 Audi A4 Avant Premium Support
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21-03-2004, 15:38 Subject: Oil Paint: Types, Techniques & How To Use It |
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Yes, it's perfectly normal for the oil in diesel engines to turn black again quickly. It might not be as dark as old oil, but it will definitely be visible on the dipstick.
As mentioned before, with new cars, it naturally takes some time for enough dirt to accumulate in the oil system.
It is always amazing to see what people worry about.
some people drive for 50,000 km with a single oil change  .
And others already get worried about their engine after 10,000 km.  B.Eng (FH) u. KFZ Meister
Seit 06/10: Audi A4 1,9 TDI Avant Quattro mit AVF.

Translated on 19-08-2026, 19:48.
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Gremlin Guest
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22-03-2004, 10:05 Subject: Oil Paint: Types, Techniques & How To Use It |
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It's always amazing to see what people worry about.
some people drive for 50,000 km with a single oil change  .
I'm only doing this for you guys...
Furthermore, one shouldn't criticize LLMs unless they have been tried and analyzed  .
and the oil itself is actually still in good condition after the mileage... with a fine filter in a bypass circuit, the 50,000 km interval wouldn't be a problem at all.
By the way, the oil turned black again very quickly after the change. This is normal; a lot of old oil remains in the engine after an oil change, and even small amounts of additives can cause it to darken.
For your information: After 42,000 km, my oil contained approximately 2.86% Russian content and was as black as night in a shoebox.
CU Gremlin.
Translated on 19-08-2026, 19:50.
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