I've been hearing a lot about biodiesel. Has anyone experimented or fully converted over to biodiesel? What are the long term effects (positive or negative)? I have a friend that is a jet mechanic and tells me that his company throws away nearly 100 gallons of JP5 every day... . is it possible to use this fuel in my truck. Are there mods that will allow the use of JP5 or will dilution with oil make it useable?