what could cause motor oil in radiator?

Asked by Mar 09, 2015 at 02:54 PM about the 1988 Chevrolet Corvette Coupe

Question type: Maintenance & Repair

have 1988 chevy corvette base passing motor oil to radiator

2 Answers

143,455

The dreaded head gasket maybe. Or cracked or warped head, especially if it has overheated badly, but a warped head causes head gasket to blow. But first make sure it's actually motor oil, not ATF. And just for fun, pop radiator cap cold, start and allow to warm up and watch for bubbles. That is another sign.

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