Is your BMW V8 burning oil? Is your BMW smoking? Many BMW drivers that own a 545i, 550i, 645i, 650i, 745i, 745li, 750i, 750li, X5 made between ’03-’08, or any BMW with the V8 N62 engine, experience excessive smoke coming from the exhaust tail-pipe following a lengthy idle. This is due to worn valve stem…