Ok so last summer my mini ran awsome, perfect. Now its winter and my car is starting to putter around and hesitate. Some white smoke is also coming out the exhaust. So i check all my spark plugs and they all have oil on them..!?!?! What does this mean. Worn out piston rings?, worn valve guides, worn Bores?? Any ideas.. Please help..Its a 1000 cc and i dont know the mileageWhat should i do/test firstThanks Derek