3 ms·

Those still require fuel, no?

• undersuit 12y ago
  Their tractor page include this line: We are interested in a Piston Engine Construction Set – modular, in-line scalable engine that can be adapted to spark ignition, compression ignition, or steam power. That kind of means petro, diesel, and coal. That's not a hard fuel requirement though.
  • random28345 12y ago
    As long as it includes ethanol, then it's sorta renewable.
• tsotha 12y ago
  If you have to you can run vehicles off of anything that burns. Thus the wood-fired trucks in North Korea.
• delbel 12y ago
  Two acres of sunflower seeds will produce enough oil to run a tractor for one season.