A Connecticut man has outfitted a pickup truck to run on wood, leaves and compost and has traveled as far as 600 miles on a truckload of the burnable fuel.

Dave Nichols of Killingly says the idea goes back to when he first saw a modified car running on garbage in the "Back to the Future" movies two decades ago. But the gasification process he uses for his 1989 Ford F150 pickup truck relies on science more than 100 years old.

Nichols and others around the country are experimenting with gasification, which they say can also heat and power homes and help the U.S. reduce dependence on foreign oil.

They say it also burns cleaner than oil and gasoline.