Question about 1991 Oldsmobile Cutlass Calais
Posted by Anonymous on
Replacing the heater core isn't likely related to the water in your oil.
Check the coolant overflow bottle for traces of oil too; if you see any signs there you probably have a blown headgasket. Also sniff the open bottle to see if there are any exhaust fumes noticeable.
If your oil is already looking milky, the engine is in danger of failure since that emulsion does not lubricate as oil alone.
If a tech finds the headgasket has indeed failed, make sure that the cylinder head(s) are resurfaced to remove any warp that has developed. That isn't costly to have done and will insure that the new gasket doesn't fail too soon either.
Posted on Dec 31, 2010
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Posted on Jan 02, 2017
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