L.E.T.S. is going green! In Spring 2015 we took delivery of six new propane-fueled buses. Clean-burning propane will significantly reduce bus emissions, with 12% less carbon dioxide, about 20% less nitrogen oxide, up to 25% less greenhouse gases, and up to 60% less carbon monoxide than gasoline-powered vehicles. It is also 30-40% less costly than gasoline while achieving comparable fuel mileage.