Josh Tickell, a 29-year-old author and biodiesel expert, said the eco-friendly fuel is made by pulling glycerin out of the vegetable oil molecule through a relatively simple technology that involves mixing the oil with an alcohol.
"At the base of the biodiesel reaction is essentially a mixing process. Sure, there are other pieces at the refinery like more purification and distillation to make sure the fuel is very pure," Tickell said. But in the hobby sense, he said, "If you can make a margarita, you can make biodiesel." Click here for the full story.