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Coolant in oil

Tiny
JERRY HOLLOWAY
  • MEMBER
  • 1998 BUICK CENTURY
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 130,000 MILES
Car started overheating So I checked coolant and hoses and radiator. Was no leaks anywhere but was dangerously low on coolant. I added more coolant and then checked the oil. It was milky on the oil stick.
Monday, October 30th, 2017 AT 5:25 PM

1 Reply

Tiny
STEVE W.
  • MECHANIC
  • 13,454 POSTS
Not a good sign. There are two possible areas that can cause this. One is the head gaskets the other are the intake manifold gaskets.
Step one would be to change the oil and filter. Now run a combustion gas test and see if it is a head gasket issue.
https://www.2carpros.com/articles/head-gasket-blown-test

If the tests show good compression and no gasses in the coolant it is likely to be just the intake gaskets. Those are not that bad to change.
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Monday, October 30th, 2017 AT 5:38 PM

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