There is no general diesel forum or any other place where this made sense, so here it is. Some interesting links to recent articles and information. MSN fluf article Find biodiesel near you! Lots of general info. If all goes according to plan, my 1 ton K5 will be running a Cummins 4BT on B100 pretty soon. B100 in Phoenix is actually cheaper than Petro Diesel right now AND you get better performance and mileage for the price. Should work great in that simple little motor, but I'm not sure I want to try it in my DMax!