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Light-Duty Automotive Technology, Carbon Dioxide Emissions, and Fuel Economy Trends: 1975 - 2014

NOTE: You will need Adobe Acrobat Reader, available as a free download, to view most of the files on this page. See EPA's PDF page to learn more about PDF, and for a link to the free Acrobat Reader.

Executive Summary

Light-Duty Automotive Technology, Carbon Dioxide Emissions, and Fuel Economy Trends: 1975 Through 2014 -- Executive Summary (PDF) (10 pp, 1.5MB, EPA-420-S-14-001, October 2014)

Full 2014 Report

Light-Duty Automotive Technology, Carbon Dioxide Emissions, and Fuel Economy Trends: 1975 Through 2014 (PDF) (148 pp, 5.32MB, EPA-420-R-14-023, October 2014) Full Report Tables (Excel) (150K, October 2014)

Appendices to the Report

List of Appendices (PDF) (1 pg, 500K, EPA-420-R-14-023, October 2014)

APPENDIX A: Vehicles with Lowest and Highest Unadjusted, Laboratory Fuel Economy by Model Year (Excel) (37K)

APPENDIX B: Production-Weighted Percent Distribution of Adjusted Fuel Economy (MPG) (Excel) (24K)

APPENDIX C: Percent of 1975 to 2014 Production by Fuel Economy Band (Excel) (100K)

APPENDIX D: Fuel Economy Data Stratified by Vehicle Type (Excel) (140K)

APPENDIX E: Fuel Economy Data Stratified by Vehicle Type and Weight Class (Excel) (607K)

APPENDIX F: Fuel Economy Data Stratified by Vehicle Type and Drive Type (Excel) (203K)

APPENDIX G: Fuel Economy Data Stratified by Vehicle Type and Transmission (Excel) (563K)

APPENDIX H: Fuel Economy Data Stratified by Vehicle Type and Cylinder Count (Excel) (314K)

APPENDIX I: Fuel Economy Data Stratified by Vehicle Type, Engine Type and Valves Per Cylinder (Excel) (187K)

APPENDIX J: Unadjusted, Laboratory Fuel Economy (MPG) by Manufacturer, Vehicle Type and Inertia Weight (Excel) (503K)

APPENDIX K: Fuel Economy Data Stratified by Manufacturer and Vehicle Type (Excel) (1.25MB)

Full 2013 Report

The 2014 report, available above, supersedes all previous versions of the report. The full 2013 report is available for reference only.

Light-Duty Automotive Technology, Carbon Dioxide Emissions, and Fuel Economy Trends: 1975 Through 2013


For More Information

Please contact Aaron Hula at 734-214-4267, hula.aaron@epa.gov, or:

Office of Transportation and Air Quality
U.S. Environmental Protection Agency
2000 Traverwood Dr.
Ann Arbor, MI 48105


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