Ron61 They are using old cooking
oil from the fryer vats. Any quick food place is always looking to get rid of the
oil. Times are changing in my area. Companys used to get paided for removal. Now they are paying by the gallon. The good old goverment is getting pissed because they are not getting tax dollars for this. It takes about 2 days to make 40-50 gallons of bio fuel. You need space to start, a 100 gallon tank, and a steady supply of
oil. The oil gets filtered twice to clean it up,and a process to make the fuel is pretty easy. There are a couple of companys out there that will sell a whole kit for maken fuel. IMO I would mix the bio and regular diesel togeather at a 50/50 mix. The cost of maken a gallon of bio fuel is about $1.25 -$1.35 per gallon. This is with the electric needed to do the refining. Diesel make great power. The problem is the transmissions have problems with the torque. They had a Dually dodge with twin turbos sequential running 12's in the 1/4 mile. The truck broke 2 transmissions before the week was over. This truck was over 6,000 lbs. That's power. Main shafts for the transmissions need to be made of tool steel. Anything less and the shaft is twisted. We are talking about a shaft with a 1 1/2" solid diameter. 1,200 ft of torque and 660 HP. You should pull up Gale banks and look at his nascar truck with a diesel. It also has a 5,500 rpm limit. THAT'S alot of weight spinning at that rpm. Diesels are catching gas motors, just like the merlin motors where caught by the turbines for power unlimited boats. Bio doesn't give the same milage or power as regular diesel about a 10-15% drop. But with the cost almost 2/3rds less. This is why a think the 50/50 mixture is the best. You do the math. You can save from $1.75 per gallon to almost $3.00 per gallon. Google Bio fuel to find the companys that sell the kits. It's easy to make, just need the space and old oil. Rick L.