Oh yeah, wood chips, not ethanol. The guy is from Williamsport, PA. New York Times article: http://www.nytimes.com/2008/07/06/automobiles/06TROOPER.html?_r=1&ref=automobiles
Wonder if a big a$$ wagon is more adaptable. Mileage would be per LOG - MPL. Stumpage fees might go up?
It should do plenty more, if the gas gets compressed. The major drawback with these systems is the soot which cakes up the valves. If you could somehow filter that out, you should be left with only clean combustible gas. Having the gas flow through an oil bath could do it
It's novel, to say the least, but very inefficient. Unfortunately, the engine has to take in the hydrocarbons to run, so filtering wouldn't work. But making a hydrogen gas generator, using wood as the fuel stock, then introducing the hydrogen into the engine, would be an alternative to prevent the sooting of the valves.