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

Note: EPA no longer updates this information, but it may be useful as a reference or resource.

NOTE: These values represent real world fuel economy and emissions. They are not comparable to automaker standards compliance levels

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, 3.4MB, EPA-420-R-14-023a, 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)


For More Information

Please contact Jeff Alson at 734-214-4296, alson.jeff@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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