Question of the Month: How can I compare the energy content of alternative fuels and gasoline or diesel? What implications does this have for overall fuel and vehicle comparisons? 

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Question of the Month: How is fuel economy determined and reported for alternative fuel vehicles?

Answer: Last month we learned about how the U.S. Environmental Protection Agency (EPA) determines and reports conventional light-duty vehicle fuel economy ratings. While alternative fuel vehicle (AFV) fuel economy testing is largely similar to that of conventional fuels, the EPA makes some adjustments to account for different vehicle technology and fuel energy content. By tailoring AFV fuel economy testing and reporting, the EPA is able to provide apples-to-apples comparisons and allow consumers to make informed decisions. 

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Question of the Month: What is the AFLEET Tool, how can I use it to make decisions about alternative fuels, and what are the recent improvements?

Answer: Argonne National Laboratory’s Alternative Fuel Life-Cycle Environment and Economic Transportation (AFLEET) Tool allows you to examine both the environmental and economic costs and benefits of alternative fuel and advanced vehicles . 

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In theory, if all motor fuels were taxed equitably it would ensure tax consistency among jurisdictions and reduce consumer burdens. In practice, motor fuel taxes vary widely between jurisdictions and across fuel types. 

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