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Oil in antifreeze

rogerh's Avatar

Join Date: Nov 2002
Posts: 233

06-04-03, 09:31 PM   #1  
Oil in antifreeze

Just recently I notice a little oil in the antifreeze reservoir on my 96 Lumina. Could this be a sign of a problem? What do I do to fix it?

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knuckles's Avatar
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06-04-03, 10:00 PM   #2  
Are you sure it's oil?

These cars use crappy Dexcool, which deteriorates & leaves a nasty film & some floaty crap in the coolant reservoir.

I suggest you clean the reservoir (remove it & wash it out thoroughly) flush the cooling system & refill with fresh Dexcool.

Check the reservoir again in a few days & see if any new 'oil' appears. Let us know what you find.

Joe_F's Avatar
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06-05-03, 03:15 AM   #3  
I agree. Check the oil closely. If it's like a milkshake, that would be a problem (head gasket).

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