I have a 2010 SHO with a gremlin in it. Fist time I had this problem it was about a year ago. After idling awhile ift started for put out a lot of blueish smoke. By the time I drove it home it had quit. It started to do it again. I am going through quit abit of oil.I am using some water also. the strange thing is it does not do this all the time. May go two weeks with out smoking. Once or twice it has pinged like when your timing was way off. Some times it is way under power then runs great. My only thought is a head gasket. Or maybe something to do with the PVC system. But I am an old retied firefight not a mechanic. I sure could use some help. Thanks in advance
Keith
Keith