A friend of a friend of a friend of mine apparently makes their own biofuel for like 90 cents per gallon. Is there any truth to this? From what I here you can make you own contraption for like a 1000 bucks and then you can use McDonalds fryer oil to make your fuel. How do you do it and what are some sources to find more info on this topic? It would be nice to here from someone who is an expert in the area or makes their own stuff.