www.pulse-jets.com

Audi has an A4 that ran 227mph on this stuff, maybe there is something to it?

Its the purified form of what crops in a no-oxygen environment emit while decomposing, similar to wood-gas in a gassifier. Its mostly Methane with a good chunk of CO2 in it aswell. Supposedly has an octane rating of up to 140 [!/?], could find a use in some project jets/rockets. How hard would it be to setup a mini bio-gas still in the backyard, throw some corn in with your rabbits droppings?

http://www.topgear.com/uk/car-news/biogas-2009-05-29

Hi Zippy

this would be an interesting post to add to the thread on alternative fuels I just started over in tools and construction, would you mind if I copied it over in to that thread?

Viv

Go for it!