According to an article from Earth911.com, tire maker Yokohama is selling a tire model now that is made of 80 percent materials that are not petroleum. They used orange oil as their primary ingredient to make the vulcanized rubber. The orange oil tire is called the Super E-Spec and it received the Popular Mechanics Editors Choice award in the year 2008.  The tires are going to be marketed for the Toyota Prius. The article states: "The eco-focused dB Super E-spec mixes sustainable orange oil a [...more]