i went to napa today to find out about a head gasket on my mk2, and the napa dude came outside and looked at my engine. he said that its oil leaking, because the valve cover gasket is blown. he said that if the HG was blown, the engine would idle ruff and its idling pretty smooth. any comments on this? and also im losing about 2 cups of coolant every 2-3 days. he said in case of a BHG, i would be losing tons of coolant a day. what do you all experts think?