he whipped up a batch of about (1/4 capacity of the machine) 150 gallons of usable fuel and said it cost him around 70 cents a gallon including the price of the rig to make it...so the next batches would be even cheaper because you wouldn't have to pay the $500-600 for the rig that turns used vegatable oil into deisel.
the rig was called a "fuel mieser" may be "fuel miser"..but he went and got about 150 gallons of used vegatable oil and like 1-2 gallons or airplane fuel. he strained the oil to get the crunchies out then ran it through the machine once, that scrubbed the oil he said, then there was a seperate tank to add the airplane fuel and turn the machine back on..not sure how long it takes to make the finished product but heck for the price i would wait!