My lightning started to make noise a few day ago amost like rattling noise. But can't figer out want it is. Plus it is aslo burning oil. It is blowing little blue smoke. Could it be top end or lower end. Thanks fast lightning

 

not enough info there. how many miles? did you just buy it? used or new? could be anything from worn piston rings to pcv or piston slap to "blower cavitation"