Lynne Kiesling Mike’s post about ethanol and fuel economy raises an important general point: fuels and the technologies for burning them are strong complements. Engines are not one-size-fits-all fits with different fuels, but are highly customized. We see this in history, too. The move from the use of whale oil for lighting to kerosene for … More Fuel and Complementary Technologies … More Fuel and Complementary Technologies