a mates FRST is absolutley pleuming what seems like white smoke from the exhaust on tick over which has only just started happening.Not too long ago the car did over heat etc

is this a sign of the h/gasket gone tits up? as we looked at the dip stick and oil cap and couldnt see any signs of water droplets/mayonase type symtoms

he hasnt been using the car of late but when he was did had to fill the header tank reguraly coz was loosing water this was after it had over heated

is this h/gasket probs??