Why would there be oil in my car's radiator?

There are two reasons why oil might be in the radiator. * If you are lucky, your heat exchanger is leaking, and replacing the radiator will take care of it. * If you are unlucky, your head gasket is leaking. read more

There are two reasons why oil might be in the radiator. If you are lucky, your heat exchanger is leaking, and replacing the radiator will take care of it. If you are unlucky, your head gasket is leaking. read more

If there is a leak, air bubbles will begin to appear in the radiatorneck after a few minutes. If teh leak actually is engine oil (this is rather rare), then you may have a failing head gasket, a cracked cylinder head, or a cracked engine block. read more