[gnilrac]

Thanks 4 answer.I patched hole this morning,but noticed there's a oil smear from the head gasket,not major,so I suspect its broken there.Could that also be a cause?And when refuelling ,I can smell that the petrol somewhat fuming from the locked petrol cap!Its like the petrol is trying to leak out of the cap?What could that be,as I am dumbfounded with that one.There are no leaks ,fuel.oil or water visible wen I leave the car overnight with a clean cardboard underneath.Thanks again for advice.