Question about 2002 Chevrolet Malibu

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Gunky Stuff in radiator

There is some sort of brownish oily gunk in my radiator that has me concerned. It has been there since ever I bought my 2002 Malibu from a dealer. Although I didn't really notice it for a couple of months after I got the car because the water level appeared to be fine.
I took it to a mechenic and they said it was "normal" My car hasn't been over heating or anything like that. but it just doesn't seem right to me. Has anyone else noticed this gunk in their radiator?

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The brownish stuff is probably Dexcool antifreeze used in later model GM cars.It supposedly lasts for 5 years, but should be changed before the 5 years. It can form a brownish mud around the radiator cap neck as well as a brownish coloured fluid in the overflow tank, Flush the rad and replace with new Dexcool. It is orangey in colour when fresh. if there truely is oil in the rad, then there may be a gasket leak.

Posted on Dec 09, 2008

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When I was getting an oil change the mechanic told me that my gaskets were going- Thank god my car was under extended warranty because all the engine gaskets needed to be replace- this cost about $1200.00. I paid my $100 deductible and I was done! They told me this model has problems with the gaskets leaking.

Hope this helps!

Posted on Nov 21, 2008

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It may not be abnormal but I would take it to a reputable radiator shop to look at just to feel satisfied.

Posted on Nov 18, 2008

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