by Bella Holly Biodiesel machines are becoming more and more popular these days with so many people concerned about the state of our environment. Machines that run off of biodiesel are much better for the environment as biodiesel is made from vegetable oil (even the USED kind), which has much lower emissions than fossil fuels like diesel and gasoline-fuelled machinery. Biodiesel itself is renewable and can greatly cut back on the amount of toxic pollutants our cars and other machines rel