Rumors surrounding the death of diesel are, as Mark Twain once said, greatly exaggerated. While some people can't wait for the last puff of smoke from an internal combustion engine, Allen Schaeffer isn't among them. He's the head of the Diesel Technology Forum, and one of diesel's greatest proponents. If you're worried about the sustained attacks on trucking's fuel of choice, Allen Schaeffer explains why diesel engines aren't going anywhere anytime soon. And if you think diesel is dead, or even on its last legs, after listing to this episode you may come away with a completely different point of view.