my 1984 928 auto had a mysterious coolant leak..after chasing it and replacing reservoir w/ new cap it became worse. engine began sputtering intermittently..checking all spark plugs i found coolant on one plug..drivers side rear bank..and COOLANT IN ENGINE OIL. i tried a few of the over the counter magic potions to stop head gasket leaks..no good. engine was driven a bit with water in oil unknowingly. does this sound like a blown head gasket?? can this allow oil and coolant to mix? this one piston is now sounding strange and engine wont idle and blows white steam smoke from exhaust.... do i still have a chance to save her? she was run probably 10 hours with water in oil..
