There are many types of fuel that get labeled as biodiesel. There is waste vegetable oil, straight vegetable oil, soybean oil, canola oil, etc. We have two biodiesel plants near us and as far as I can tell, neither is running. They were built when soybean oil was selling for $. 24/lb. and operation was profitable. Now, soybean oil is over $. 70 /lb and to make money soybiodiesel would have to be somewhere near $6. 50+/gallon (this would include govt subsidy). I think this is why it is being shipped to europe, where diesel is in more demand and higher priced-because that is where they can make profit. This is also why biodiesel is higher priced - the inputs are higher priced. A gallon of soy oil yields roughly a gallon of biodiesel. A bushel of corn yields 3 gallons of ethanol. Bottom line is this-for biodiesel to become an option there needs to be a cheaper alternative to soyoil, or the price of soyoil needs to drop, or diesel needs to rise (I am pretty sure that none of us wants that!)