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Fuel Fact of the Week

Fact #1107: Changes in Vehicle Miles Traveled Often Mirror Gasoline Price Changes



The number of vehicle miles traveled (VMT) often mirrors changes in the price of gasoline. The figure below shows the percentage change in gasoline prices and VMT from one year to the next (e.g., January 2009 data were compared with January 2008 data). Still, the price of gasoline is just one of many factors influencing vehicle travel, including demographics, economic growth, and transportation mode shifts.

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Past Fuel Facts of the Week.

Question of the Month

How is fuel economy determined and reported for alternative fuel vehicles?

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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