I have a guy that I work with that has been making it for about two years. He's heating his house with it too. The key is to get enough restaurants, etc., to give you the raw product. I have heard that the restaurants want to sell it to you now. When he first started using it he drove his 1 ton with his fifth wheel to California and back using his own biodiesel. He had some filter problems originally however, he has since refined the process and changes his fuel filters every three to four months.
I own a 2004 Ford 6.0 l. I am curious what I'll do to the motor. Ford is still saying you need a 80/20 split with diesel and biodiesel for their warranty to remain in effect.
I think when I retire in less than a year I'll seriously look more into the set-up and give it a go. I'll need to build a small building to house everything. I'm out of room in my shop. I figure my set-up costs with a 10' x 12' building will be around $3500.00.
I currently only tow my sled with my pick-up and fish every 7 to 10 days. It's $100.00 to go fishing now. What will it be in a year? My buddy said it costs him about a $1.00 a gallon to produce. Sure beat the daylights out of $4.35 a gallon.
Good luck! Captain