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Did an oil change... oil looked like chocolate milkshake?

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Old Jan 5, 2008 | 07:25 PM
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Default Did an oil change... oil looked like chocolate milkshake?

Does this mean the oil was contaminated with antifreeze? This happened on my dad's car, 2002 Honda CR-V (K24). The car drives fine except for some minor issue like resistance to redline (auto), it use to rev nice and high but now its like sluggish. Car also vibrates a lot at idle. There is no white smoke.

What should I do?
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Old Jan 5, 2008 | 07:29 PM
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Default Re: Did an oil change... oil looked like chocolate milkshake? (Azxster)

i have no clue. Same thing happened to me. When i bought the car i drained the oil and it was brown. I changed the oil again 1000km after. Then filled it up with oil and ran it around the block reving it to death and let it idle at 6k for about 30 seconds. Then drained it and filled it with new oil. It comes out black again now. I have no clue, i think it was just really old and dirty. If your wondering the high revs was just to slosh the oil around and kind of clean the engine a bit of older dirty oil. It worked alright.
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Old Jan 5, 2008 | 07:31 PM
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Well, all i can say is that when they do blow headgaskets or have coolant in oil, it turns a brown milky color. And since it doesnt run as it used to, it may be something to look into.
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Old Jan 5, 2008 | 08:09 PM
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Default Re: Did an oil change... oil looked like chocolate milkshake? (Prudz_lude)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Prudz_lude &raquo;</TD></TR><TR><TD CLASS="quote">i have no clue. Same thing happened to me. When i bought the car i drained the oil and it was brown. I changed the oil again 1000km after. Then filled it up with oil and ran it around the block reving it to death and let it idle at 6k for about 30 seconds. Then drained it and filled it with new oil. It comes out black again now. I have no clue, i think it was just really old and dirty. If your wondering the high revs was just to slosh the oil around and kind of clean the engine a bit of older dirty oil. It worked alright.</TD></TR></TABLE>

Wait so you noticed that something was wrong, put more oil in, and proceeded to beat the hell out of the car? People like you make buying a used car a gamble.

to the OP-
Id take it to a shop immediately for a leakdown test
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Old Jan 5, 2008 | 08:30 PM
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Default Re: Did an oil change... oil looked like chocolate milkshake? (vestalfootball72)

A milky consistancy in your oil usually means that antifreeze is to blame so you are correct, A faulty headgasket would be a most likely culprit but isnt the only probability. As vestalfootball72 stated a leakdown test would be in your best intrest at this moment to see if it is indeed the headgasket that needs replacing.


<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Prudz_lude &raquo;</TD></TR><TR><TD CLASS="quote">i have no clue. Same thing happened to me. When i bought the car i drained the oil and it was brown. I changed the oil again 1000km after. Then filled it up with oil and ran it around the block reving it to death and let it idle at 6k for about 30 seconds. Then drained it and filled it with new oil. It comes out black again now. I have no clue, i think it was just really old and dirty. If your wondering the high revs was just to slosh the oil around and kind of clean the engine a bit of older dirty oil. It worked alright.</TD></TR></TABLE>

what you did is wrong in so many levels and one day down the road it will kick you in the ***. No matter how old the oil is or how dirty it is it should never have a milky consistancy. This means it is being contaminated by a fluid and not a solid dirt particle. Common sense should tell you that the dirtier and older the oil the darker black tint it should have. Not a milky runny texture you probably clogged the hole with carbon build up from revving the **** out of that motor. So unless you plan on changing the gasket I advise you from using Sea Foam or any other engine cleaner.
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Old Jan 5, 2008 | 09:15 PM
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Keep in mind, not all blown headgasket lead to blowing smoke, the gasket can fail in places other than on the piston/coolant side, its just more common for it to fail there
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Old Jan 6, 2008 | 09:25 AM
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Default Re: Did an oil change... oil looked like chocolate milkshake? (vestalfootball72)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by vestalfootball72 &raquo;</TD></TR><TR><TD CLASS="quote">

Wait so you noticed that something was wrong, put more oil in, and proceeded to beat the hell out of the car? People like you make buying a used car a gamble.

to the OP-
Id take it to a shop immediately for a leakdown test</TD></TR></TABLE>

Noooooooooooo i thought it was obvious, i drained the old oil first It does not burn oil at all, it gets great milage still, it doesn't burn coolant either, and the leak down and compression came back perfect.

Either way i have a complete z6 swap i will put on in summer so im not worried if it were to blow up on me.
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Old Jan 7, 2008 | 08:52 AM
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Default Re: Did an oil change... oil looked like chocolate milkshake? (Prudz_lude)

i also agree that milkshake in your oilpan = blown headgasket..
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Old Jan 7, 2008 | 09:46 AM
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Default Re: Did an oil change... oil looked like chocolate milkshake? (sanimalp)

i agree with that as well. It was not really milky. Just extremely light brown and nasty.
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Old Jan 7, 2008 | 10:29 AM
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do u only notice alittle or alot like when your draining the oil? if its just alittle it could be from the moisture since its winter time...we get alot of cars that come in for oil changes and when u take off the oil cap u will see alittle chunky milkshake stuff..if its alot and u notice it while draining the oil, then something else could be wrong
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Old Jan 8, 2008 | 12:57 PM
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Default Re: (ekb16)

expletive... 70K KM over the 100K KM power train warranty.

It was a lot, the entire drain was nasty. Turns out the rad reservoir was empty. I just filled it up and am going to keep an eye on the level and check the oil cap. I already put 750KM on the oil already (500 for my trip), should I wait until 2K, drain it and see how it goes?
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Old Jan 8, 2008 | 02:30 PM
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Default Re: (Azxster)

if it were me personally, i would stop driving it until its fixed. a blown head gasket is going to be cheaper to fix than a spun bearing.
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Old Jan 8, 2008 | 03:52 PM
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Default Re: (sanimalp)

Update: So coolant level seems to be the same, but when I looked inside the engine through the oil cap, it was like a dirty **** coffee brown.

Spend $50 to do tests or $600 to replace it...
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Old Jan 8, 2008 | 04:36 PM
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Default Re: (Azxster)

$50 to do tests would be more practical at this moment, It doesnt take alot of coolant to contaminate your oil and you wont always notice a level difference with the coolant. Just get the leakdown test done if it is your headgasket its a realativly easy fix and if your willing to do it yourself it will be alot cheaper. If not look around more because $600 is alot for just the headgasket to be replaced unles they are going to be checking both decks for warpage and flaws.
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