Okay, so I was just running some random thoughts through my head, and I realized that I really liked the Doc's idea of using trash to produce energy... Maybe not 1.21 gigawatts from a Mr. Fusion, but you never know.
I was wondering if it would be possible to make a portable thermal depolymerization device that runs off of the waste heat from the car's engine. Even diesels lose a huge amount of energy through thermal waste, and I'm wondering if that waste energy could be used to convert plastics and other trash items into a fuel that could be used to... ta da... run the diesel engine.
It might be a little beyond the abilities of someone trying to put together a home-brew type system, but one never knows... So, what to you guys think? Possible? Even worth trying? There are, literally, tons of fuel just lying around.