Bio Diesel is a waste of time and money. A diesel engine was Built to run on Peanut Oil not fossil Fuel. My VW PickUp runs on straight oil non of that Bio crap. I have run Veggie Oil, PS, Trans, Engine, Hydraulic and Mineral Oils thru the truck with out a problem. There is an outerlimts with diesels in it. I want to try running WVO/SVO or Hydraulic oil thru that.