Anybody that ever has pulled into a gas station with their Mercedes-Benz automobile for the first time knows the anxiety of wondering which gasoline is necessary for the proper daily function of that Mercedes-Benz SUV or sedan. At every gas pump there are three options, Unleaded, Plus, and Premium, and all of them have “Octane Rating” numbers plastered on the buttons that allow drivers to choose a fuel. Why are there so many different types…