e178.
For fuel energy density, see, e.g., Heinberg (2009); and “Fuel Energy Density”, IOR Energy, available at https://tinyurl.com/ob8tn2g . For conversion energy efficiency of around 60%, see, e.g., Carmine L. Iandoli and Signe Kjelstrup, “Exergy Analysis of a GTL Process Based on Low-Temperature Slurry F-T Reactor Technology with a Cobalt Catalyst”, Norwegian University of Science and Technology, 2007, available at https://tinyurl.com/q4x7lxn . See also Tom Standing, “Natural Gas Vehicles—How Much Can They Reduce Oil Imports?”, 2009, available at www.chrismartenson.com/print/14308 .