I have a 98 430(sport), 33K miles, use synthetic oil. When the car has been sitting a day or more it gives off a puff of blue smoke when started. No noticable oil consumtion.Should I worry or return to dealer as next year I have to decide to buy or return at end of lease? PS love the car!! Thanks.
98 E430(sport), 99 ML 320 (sold) , 05 C 230(sport) Mark