sold us 6, 000 gallons of used cooking oil for use in biodiesel production. Product was heavily contaminated with degreaser which caused the creation of gasses when the oil broke down, which caused extensive swelling of the flexitank and metal cargo container (destroying the container). Additionally when the UCO was converted into biodiesel, the biodiesel manufacturer reported that the degreaser in the oil caused extensive injector damage in the vehicles that used the biodiesel from this oil. And if this is not enough, our delivery was short in volume, so we over paid $1, 091 and have been trying for 6 months to get our money back. Overall, one of the worst businesses I have worked with.