Goverment has recently said that you can produce upto 2,500 litres of bio diesel tax free. Think i worked it out and for me (if i had a diesel car lol) it'd be enough fuel for the year
i've been looking at these things
http://www.etruk.com/
Gonna have a serious look next year at changing the car for nice diesel one and getting one of these bad boys. We got a chippy at the end of out road
think i'd still run a mix of bio and normal diesel. heard from some people about cars catching fire on just biodiesel