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Oil getting dark

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Old Jul 22, 2014 | 12:54 PM
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Oil getting dark

So since I did my oil change about 2000 miles ago or so it seems that in the last month it has gotten darker quicker? T6 5w40 is what i have in it. Not really concerned just an observation?
 
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Old Jul 22, 2014 | 12:56 PM
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Just means it's doing it's job. Diesel oil isn't supposed to stay "clear".
 
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Old Jul 22, 2014 | 01:01 PM
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In my Passat diesel it gets real BLACK in less than 50 miles. It must REALLY clean good!
 
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Old Jul 22, 2014 | 01:19 PM
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yeah--was kinda interesting that for the first good while it looked just like new--then just this month it seemed to turn. Heck I can't say that any oil in my gassers has stayed like new this long actually. It was just surprising it was like you flipped a switch and was "normal" color lol
makes it alot easier to see on the dip stick that's for sure.
 
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Old Jul 22, 2014 | 01:32 PM
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You have roughly 3 quarts of old oil in system left when you change oil, so it darkens some instantly. But then it takes a while for it to get worse...
 
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Old Jul 22, 2014 | 01:44 PM
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I agree with everything said above. The oil is doing it's job. Being the T6 is a synthetic, it is "supposed to" clean the engine's internals better than a conventional oil which would explain why it was darkening noticeably quicker. It may have just taken that period of time for the T6 to break down the sludge and deposits inside the engine. That being said, the fact that there is old residual oil left in the engine after draining and the fact that a diesel is going to darken oil faster than a gasser in most cases means you are good to go!
 
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Old Jul 22, 2014 | 02:41 PM
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I'd say you have a pretty tight engine! Mine is black in 500 to 1k miles, and I did the most AR engine break-in I've ever heard of anyone doing
 
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Old Jul 22, 2014 | 06:35 PM
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I wonder - if the previous oil was conventional - if this next change might have a ton of junk in it?
 
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Old Jul 22, 2014 | 06:52 PM
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Synthetic will clean more sludge and contaminants out then dino oil does, so it will have more so then previous. But it's not tons or anything...
 
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Old Jul 22, 2014 | 06:54 PM
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Should be getting clean as a whistle that's for sure.
 
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Old Jul 22, 2014 | 09:06 PM
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One thing I found was my oil stayed clean for a long
time. But they also had done an oil cooler. When
I did the change it got dirty a lot faster then before.
But I also think that all the hold-over oil had a lot
to do with that.


Sean
 
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Old Jul 22, 2014 | 09:13 PM
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Makes sense.

Sent from my SAMSUNG-SM-T217A using IB AutoGroup
 
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