oil leak from timming chain cover gasket , it' s not actually that bad but after a while the oil will drop on to something hot and smell , sometimes it puff's out abit of smoke from under the bonnet . It can smell inside the car aswell !. The thing is I have done about 2000 miles since last oil change and the oil level has hardly dropped still just below full , so it can't be losing that much . Just wondering how easy it is to change ?.