Going to assume smoke is blue/gray if so the valve guides are worn and the seals are probably shot by the milage. When you shut down oil is drawn down the valve stem into cumbustion chamber where it gets burned on start up and out the tailpipe.
If oil consumption is nominal and plugs are not oil fouling just keep on driving. Just keep a eye out for those Greenpeace guys.
Thursday, June 12th, 2008 AT 12:55 PM