Hi i have just completed a bio diesel processor it will be up and running next week i have just sourced a supply of used cooking oil and will be processing that into bio fuel i should be able to make it for around 40p per litre the processor is my own design based on what is called an appleseed type i am a retired heating engineer/plumber and its all to do with plumbing etc
Most people do not know that legally i can make 2500 litres for my own use with out paying any duty at all but i have to keep records of where and how much oil has been purchased and how much has been made the info is for the customs and exsise
By the way a taxi driver is being prosecuted for usin straight cooking oil as it is not classed a bio fuel bio fuel has to come up to a set standard
that is approved by customs before you can use it so if you get stopped and dipped you could be in trouble
so the way is use a proper processor the uses a catalyst to remove
the glycerine etc
I sounds technical but its easy once you get started and follow certain guidelines you can do it try
www.biodieselpictures.com and read some of the postings
mick