Remember the video I posted [here] awhile back, of the diesel-engined bike cruising around the streets?
I said then that I was gonna have to build one. Well, I got an engine for it. It's a start.
Here it is, running. This is the most common engine used in homebuilt diesel bikes, and they get well over 100 mpg; sometimes approaching 200 mpg. Run it on homebrew biodiesel and you have some serious possum-living transportation.