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Car Forum / GMC Cars / February 2006

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Dexcool is oily

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John61 - 11 Feb 2006 06:27 GMT
When I did cleanup of some drops spilled on the ground, I surprisingly know
the Dexcool coolant is so oily. How can we tell if any engine oil gets into
coolant tank due to head gasket leak? Both are oil...
Hairy - 11 Feb 2006 15:54 GMT
> When I did cleanup of some drops spilled on the ground, I surprisingly know
> the Dexcool coolant is so oily. How can we tell if any engine oil gets into
> coolant tank due to head gasket leak? Both are oil...

Color and appearance. All antifreeze feels oily.

Dave
Adam - 11 Feb 2006 19:08 GMT
yeah and if there is oil in the antifreeze, it will foam also.

>> When I did cleanup of some drops spilled on the ground, I surprisingly
> know
[quoted text clipped - 5 lines]
>
> Dave
HLS@nospam.nix - 12 Feb 2006 16:59 GMT
> When I did cleanup of some drops spilled on the ground, I surprisingly know
> the Dexcool coolant is so oily. How can we tell if any engine oil gets into
> coolant tank due to head gasket leak? Both are oil...

Dexcool is NOT oil..  It is water soluble.  You can put a drop or a
shotglass
of Dexcool into water and it should integrate.  If it floats, you have an
issue.
John61 - 12 Feb 2006 20:26 GMT
Thanks.
So this must be a reliable and easy way to check if oil in coolant from head
gasket leak.

>> When I did cleanup of some drops spilled on the ground, I surprisingly
> know
[quoted text clipped - 6 lines]
> of Dexcool into water and it should integrate.  If it floats, you have an
> issue.
 
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