Many people have purchased a biodiesel processor or have simply made a processor to produce the fuel. The process used to produce biodiesel fuel is simple and easy to understand and do. One of the most important aspects about the biodiesel alternative is that it can be used in any diesel-operated engine without any modification to that engine, which makes it an incredibly affordable, environmentally friendly and sensible option. Another important advantage to biodiesel fuel is that it can be stored in the same tanks or containers that diesel is now stored; it does not require any special vessel or tank.