**6. Acknowledgments**

Research on biodiesel manufacture at Oak Ridge National Laboratory was sponsored by the Laboratory Directed Research and Development Program; the United States Department of Energy Office of Efficiency and Renewable Energy Technology Commercialization and Deployment Program's Technology Commercialization Fund; and by Nu-Energie, LLC, under CRADA #01377. Oak Ridge National Laboratory is managed by UT-Battelle, LLC, for the U.S. Department of Energy. The author would also like to thank Dr. Bruce Bunting of the National Transportation Research Center at ORNL for his helpful comments.
