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How MPGe Works

        Auto | Fuel Economy

Author's Note

The first time I ever wrote at length about electric cars, George Bush was nearing the end of his term as president. That would be the elder George Bush. As we now know, certain automotive companies spent much of the ensuing decade innovating, risking big with technology and betting on long-term trends like rising fuel prices. Other companies thought such pursuit was sheer folly, a technological money pit on any number of counts. In addition, alternative fuel vehicles have carried a millstone of political and ideological arguments about their effectiveness and competitiveness for many years.

Writing this piece made me realize just how far we've come in the evolution of these vehicles and in their acceptance by auto companies and the public. The fact we'll be adding a new automotive term, MPGe, to our everyday language is huge. The measurement has its detractors, to be sure. But for the vast majority of car buyers, MPGe gives a helpful translation of how vehicles with very different fuels stack up to one another. Here's a free prediction for you: With the use of MPGe becoming mandatory, expect to see an "arms race" of auto manufacturers seeking to knock down significant markers: 100 MPGe, 150, perhaps even 200 MPGe and beyond!

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Sources

  • Balfour, Jake. "Monroney Labels Have Gone Interactive." Neps.com. May 7, 2012. (May 23, 2012) http://www.neps.com/blog/2012/monroney-labels-have-gone-interactive/
  • Garrett, Jerry. "After Almost 11,000 Miles, Jay Leno Closes In on a Year Without Refueling His Chevy Volt." The New York Times. Nov. 15, 2011. (May 24, 2012) http://wheels.blogs.nytimes.com/2011/11/15/after-11000-miles-jay-leno-closes-in-on-year-without-refueling-his-chevy-volt/
  • Green Car Congress. "EPA, DOT unveil the next generation of fuel economy labels." May 25, 2011. (May 24, 2012) http://www.greencarcongress.com/2011/05/felabel-20110525.html
  • Mitsubishi Motors/iMiEV. "Explaining the Monroney Label to Your Customers." (May 24, 2012) http://www.imiev411.com/c/explaining-monroney-label-your-customer
  • Peele, Robert. "The Senator Behind the Window Sticker." The New York Times. Jan. 2, 2009. (May 25, 2012) http://www.nytimes.com/2009/01/04/automobiles/04MONRONEY.html?_r=1
  • Reynolds, Kim. "Chevy Volt: The Real Efficiency Number." Motor Trend. Oct. 14, 2010. (May 24, 2012) http://www.motortrend.com/features/consumer/1010_chevy_volt_the_real_efficiency_number/viewall.html
  • Simanaitis, Dennis. "Monroney Reading, Self-Taught - Technical Report." Road & Track. Feb. 11, 2011. (May 23, 2012) http://www.roadandtrack.com/auto-news/tech/monroney-reading-self-taught
  • The Daily Energy Report. "Audi A2 Sets Record For Longest Distance Driven By An Electric Car." October 2010. (May 19, 2012) http://www.dailyenergyreport.com/2010/10/algae-the-new-source-of-oil/
  • U.S. Environmental Protection Agency. "EPA and NHTSA Propose Changes to the Motor Vehicle Fuel Economy Label." August 2010. (May 26, 2012) http://www.epa.gov/fueleconomy/label/420f10048.pdf
  • U.S. Environmental Protection Agency. "Fact Sheet: New Fuel Economy and Environment Labels for a New Generation of Vehicles." May 2011. (May 24, 2012) http://www.epa.gov/otaq/carlabel/420f11017.htm
  • U.S. Environmental Protection Agency. "Fuel Economy Labels in EPA and DOT Final Rulemaking 'Revisions and Additions to Motor Vehicle Fuel Economy Label.'" (May 23, 2012) http://www.epa.gov/otaq/carlabel/fealllabels.pdf
  • Weissler, Paul. "Many factors figure in fuel-economy calculation for electric vehicles." Automotive Engineering International Online. June 2009. (May 28, 2012) http://www.sae.org/mags/aei/6559/

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