Question about 1991 Buick Regal
1-If you open your oil cap and seeing a milky stuff at the inside cap, then there is a leak in head gasket. coolant mixed with oil through head gasket leak then vaporize leaving the milky stuff at your cap. 2-If you don't see it then there is possible transmission get into water. When you are running, the pressure from transmission is higher than coolant pressure so it leaks into your coolant thru transmission cooling coil in the radiator. 3-Need to address this as soon as possible since chance of car not running in the middle of a trip is high also consequences of problems are more costly. Good luck.
Posted on Jul 15, 2009
Head gasket leak and a intake gasket leak make antifreeze.look like chocalate milk shake.
Posted on Jul 17, 2009
May have oil in it. You need to flush and refill at least once every two years.
Posted on Jul 14, 2009
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Posted on Jan 02, 2017
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