Biodiesel is vegetable oil, usually used cooking oil, chemically modified to make it more diesel like.
Unfortunately there are some less than honest people out there who will be keen to sell you “biodiesel” which may not quite be what you think it is. If in any doubt, don’t buy it. Please read my Words Of Caution for more information.
Buy my book
I have written a book on biofuels, biodiesel and vegetable oil for McGraw-Hill, it will be published in late Summer 2008 - read more about it here - and find it on Amazon here.
