The biogas fuel is from livestock waste.
Japan's toilet giant TOTO unveiled on Wednesday a motorcycle that can travel as far as 180 miles on a tank filled with animal waste.
Billed as the world's first waste-powered vehicle, the three-wheeler has a toilet in place of a regular seat and huge paper roll at the back.
"The biogas it uses as fuel is not made from human waste. It's made from livestock waste and sewage," Kenji Fujita, a company spokesman said.
"We hope to raise awareness among customers about our green campaign through development of environmentally-friendly products such as water-saving showerheads and water-saving toilets," Fujita added.
The company -- which makes toilets equipped with an array of features including heated seats, water jets with pressure and temperature controls, and ambient background music -- has no plans to commercialize the motorcycle.
Copyright Agence France-Presse, 2012