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New car test and actual fuel economy: yet another gap?

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  • Schipper, Lee
  • Tax, Wienke

Abstract

Automobile fuel economy derived from tests varies greatly from that obtained from actual daily use. This 'gap' appears to be growing because tests do not reflect real-world driving and because driving is increasingly becoming less fuel-efficient. Comparisons among the US, Canada and four European countries find that automobile fuel economy tests tend to understate fuel use by 15-25%. Since automobile fuel use is at the center of much environmental concern, the present analysis of new-car fuel economy suggests some mitigation techniques to close the test/actual fuel economy gap.

Suggested Citation

  • Schipper, Lee & Tax, Wienke, 1994. "New car test and actual fuel economy: yet another gap?," Transport Policy, Elsevier, vol. 1(4), pages 257-265, October.
    • Handle: RePEc:eee:trapol:v:1:y:1994:i:4:p:257-265
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    Cited by:

    1. Meyer, I. & Wessely, S., 2009. "Fuel efficiency of the Austrian passenger vehicle fleet--Analysis of trends in the technological profile and related impacts on CO2 emissions," Energy Policy, Elsevier, vol. 37(10), pages 3779-3789, October.
    2. Bonilla, David, 2009. "Fuel demand on UK roads and dieselisation of fuel economy," Energy Policy, Elsevier, vol. 37(10), pages 3769-3778, October.
    3. Papagiannaki, Katerina & Diakoulaki, Danae, 2009. "Decomposition analysis of CO2 emissions from passenger cars: The cases of Greece and Denmark," Energy Policy, Elsevier, vol. 37(8), pages 3259-3267, August.
    4. Zachariadis, Theodoros & Samaras, Zissis, 2001. "Validation of road transport statistics through energy efficiency calculations," Energy, Elsevier, vol. 26(5), pages 467-491.
    5. Wu, Tian & Han, Xiao & Zheng, M. Mocarlo & Ou, Xunmin & Sun, Hongbo & Zhang, Xiong, 2020. "Impact factors of the real-world fuel consumption rate of light duty vehicles in China," Energy, Elsevier, vol. 190(C).
    6. Kwon, Tae-Hyeong, 2005. "A scenario analysis of CO2 emission trends from car travel: Great Britain 2000-2030," Transport Policy, Elsevier, vol. 12(2), pages 175-184, March.
    7. Huo, Hong & Yao, Zhiliang & He, Kebin & Yu, Xin, 2011. "Fuel consumption rates of passenger cars in China: Labels versus real-world," Energy Policy, Elsevier, vol. 39(11), pages 7130-7135.
    8. Schipper, Lee & Fulton, Lew, 2013. "Dazzled by diesel? The impact on carbon dioxide emissions of the shift to diesels in Europe through 2009," Energy Policy, Elsevier, vol. 54(C), pages 3-10.
    9. Schipper, Lee, 2011. "Automobile use, fuel economy and CO2 emissions in industrialized countries: Encouraging trends through 2008?," Transport Policy, Elsevier, vol. 18(2), pages 358-372, March.
    10. Tanaka, Shinsuke, 2020. "When tax incentives drive illicit behavior: The manipulation of fuel economy in the automobile industry," Journal of Environmental Economics and Management, Elsevier, vol. 104(C).
    11. Zachariadis, Theodoros, 2006. "On the baseline evolution of automobile fuel economy in Europe," Energy Policy, Elsevier, vol. 34(14), pages 1773-1785, September.
    12. Katerina PAPAGIANNAKI & Danae DIAKOULAKI, 2008. "Decomposition Analysis of CO2 Emissions from Passenger Cars: The cases of Greece and Denmark," EcoMod2008 23800102, EcoMod.
    13. Weber, Sylvain, 2019. "Consumers' preferences on the Swiss car market: A revealed preference approach," Transport Policy, Elsevier, vol. 75(C), pages 109-118.
    14. Ina Meyer & Stefan Wessely, 2010. "Determinanten und Energieeffizienz der österreichischen Pkw-Flotte," WIFO Monatsberichte (monthly reports), WIFO, vol. 83(4), pages 389-399, April.
    15. Kwon, Tae-Hyeong, 2006. "The determinants of the changes in car fuel efficiency in Great Britain (1978-2000)," Energy Policy, Elsevier, vol. 34(15), pages 2405-2412, October.
    16. Mahlia, T.M.I. & Tohno, S. & Tezuka, T., 2012. "A review on fuel economy test procedure for automobiles: Implementation possibilities in Malaysia and lessons for other countries," Renewable and Sustainable Energy Reviews, Elsevier, vol. 16(6), pages 4029-4046.
    17. Simmons, Richard A. & Shaver, Gregory M. & Tyner, Wallace E. & Garimella, Suresh V., 2015. "A benefit-cost assessment of new vehicle technologies and fuel economy in the U.S. market," Applied Energy, Elsevier, vol. 157(C), pages 940-952.
    18. Kiang, Nancy & Schipper, Lee, 1996. "Energy trends in the Japanese transportation sector," Transport Policy, Elsevier, vol. 3(1-2), pages 21-35.

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