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DIY 15K Service on Q5 2.0T- Should Oil be Black?

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Old 04-11-2014, 07:39 AM
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Default DIY 15K Service on Q5 2.0T- Should Oil be Black?

Recently did the 15k oil change DIY using the extraction method. The first oil change was performed (presumably) at the dealer at 5K. The oil I extracted was completely black (not brown). For those that have performed 15k oil changes on Q5s, is black oil at 15k normal? I'm a little suspicious that the oil was not changed at 15k because (a) the oil filter was so tight it took a breaker bar to remove it, and (b) the oil was black (not brown as I would have expected). Thanks!

Last edited by Ganny; 04-11-2014 at 07:41 AM.
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Old 04-11-2014, 09:41 AM
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If the dealer did change the oil at 5k, it could indicate problems w/the engine itself if the oil turns black relatively quick. Did you save the black oil? You can have it tested here:
http://www.blackstone-labs.com/free-test-kits.php

If you are DIY I would suggest doing another change at 20k and have it tested again at Blackstone.
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Old 04-11-2014, 09:57 AM
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Ganny, the oil goes dark on these (gasoline) direct injection engine very early.
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Old 04-11-2014, 10:12 AM
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Yes, it should be black. That means "stuff" is being held in suspension and the oil is doing its job.
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Old 04-11-2014, 10:43 AM
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Originally Posted by Parsec View Post
If the dealer did change the oil at 5k, it could indicate problems w/the engine itself if the oil turns black relatively quick. Did you save the black oil? You can have it tested here:
http://www.blackstone-labs.com/free-test-kits.php

If you are DIY I would suggest doing another change at 20k and have it tested again at Blackstone.
After a 2.500-3.000km oil in TFSI engine becomes black, it is normal for Audi engines
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Old 04-11-2014, 02:29 PM
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its normal for all cars if you driven 15k on a single oil change. at 5k engine oil will be black.
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Old 04-11-2014, 02:36 PM
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Every turbo car we have had turns the oil black just about instantly after you start it. And that's with 100% synthetic oil as well.
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Old 04-11-2014, 02:39 PM
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Old 04-17-2014, 12:13 PM
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Thanks for feedback - its sounds like its normal to go black before 10,000 miles.
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Old 04-17-2014, 12:14 PM
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Originally Posted by rdA4WtQ5 View Post
Every turbo car we have had turns the oil black just about instantly after you start it. And that's with 100% synthetic oil as well.

Just out of curiosity, why does this happen to turbo cars quicker than non-turbo cars?
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