Hi, Wanted to ask you guys to help me diagnose the issue I've got with my 2011 300. Recently I noticed distinctive gas smell coming from under the hood. But as long as I did not find any leaks, I calmed down. And yesterday the check engine light came on... Besides, in the morning I noticed misfiring, but all the plugs seem to be clean... I guess I will take it to the tech to at least check the codes and see what's happening to it. But wanted to ask you folks, maybe you had something similar and know what this is about from your experience?