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French Fry Diesel

New "Grease to Gas" program converts leftover restaurant grease from popular chains into alternative fuel.

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It's nice to see KFC and Burger King doing something with their food other than just making the world fat.

Editorial note: Whoa! You've found a super-old post here on BuzzFeed, from an earlier era of the site. It doesn't really represent where we are anymore, and may in fact be totally broken, but we're leaving it up as a part of our early history.