Follow this link to an American website for further reading on the basics of biodiesel.

www.make-biodiesel.org

The American forums;  www.biodiesel.infopop.cc  and  www.biodieselnow.com  and the South African forum  www.biodiesel.nanoelf.co.za/forum/  will provide you with discussion forums where you can find much needed information as well as a platform where you can ask questions. You can also e-mail your questions This e-mail address is being protected from spambots. You need JavaScript enabled to view it