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Light-Duty Automotive Technology, Carbon Dioxide Emissions, and Fuel Economy Trends: 1975 Through 2012

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

EPA’s annual report that tracks the fuel economy of vehicles sold in the United States is signaling a significant 1.4 mile per gallon (mpg) increase for 2012 cars and trucks – along with a continued decrease in carbon pollution.

The expected 1.4 mpg improvement in 2012 is based on sales estimates provided to EPA by automakers. EPA’s projections show a reduction in carbon dioxide (CO2) emissions to 374 grams per mile and an increase in average fuel economy to 23.8 mpg. If achieved, these would be among the largest annual improvements since EPA began reporting on fuel economy. These improvements would more than make up for a slight 0.2 mpg decrease in 2011 that resulted primarily from earthquake and tsunami-related disruptions to vehicle manufacturing in Japan. From 2007 to 2012, EPA estimates that CO2 emissions have decreased by 13 percent and fuel economy values have increased by 16 percent.

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.

The report was updated on March 30, 2012 to include a small number of additional MY 2009 vehicles, which did not change the industry-wide MY 2009 results for CO2 emissions and fuel economy but did result in a few other minor changes in the MY 2009 results.

Executive Summary

Light-Duty Automotive Technology, Carbon Dioxide Emissions, and Fuel Economy Trends: 1975 Through 2012 -- Executive Summary (PDF) (15 pp, 618K, EPA-420-S-13-001, March 2013) | Executive Summary Tables (Excel) (16K, March 2013)

Full 2012 Report

Light-Duty Automotive Technology, Carbon Dioxide Emissions, and Fuel Economy Trends: 1975 Through 2012 (PDF) (120 pp, 1.80MB, EPA-420-R-13-001, March 2013) The full report includes the executive summary but does not include the appendices. Full Report Tables (Excel) (163K, March 2013)

Appendices to the Report

List of Appendices (PDF) (1 pp, 62K, EPA-420-R-13-001-list-appx, March 2013)

APPENDIX A: Database Details and Calculation Methods (PDF) (20 pp, 283K, EPA-420-R-13-001a, March 2013)

APPENDIX B: Model Year 2012 Nameplate Fuel Economy Listings (Excel) (124K)

APPENDIX C: Fuel Economy Distribution Data (Excel) (137K)

APPENDIX D: Fuel Economy Data Stratified by Vehicle Type (Excel) (223K)

APPENDIX E: Fuel Economy Data Stratified by Vehicle Type and Size (Excel) (338K)

APPENDIX F: Car Fuel Economy Data Stratified by EPA Car Class (Excel) (235K)

APPENDIX G: Fuel Economy Data Stratified by Vehicle Type and Weight Class (Excel) (686K)

APPENDIX H: Fuel Economy Data Stratified by Vehicle Type and Drive Type (Excel) (233K)

APPENDIX I: Fuel Economy Data Stratified by Vehicle Type and Transmission Type (Excel) (584K)

APPENDIX J: Fuel Economy Data Stratified by Vehicle Type and Cylinder Count (Excel) (352K)

APPENDIX K: Fuel Economy Data Stratified by Vehicle Type, Engine Type, and Valves Per Cylinder (Excel) (257K)

APPENDIX L: Fuel Economy Data Stratified by Vehicle Type and Manufacturer (Excel) (514K)

APPENDIX M: Fuel Economy by Manufacturer, Vehicle Type, and Weight Class (Excel) (933K)

APPENDIX N: Fuel Economy and Ton-MPG by Manufacturer, Vehicle Type, and Size (Excel) (303K)

APPENDIX O: Model Year 2012 Fuel Economy by Vehicle Type, Weight, and Manufacturer (Excel) (55K)

APPENDIX P: Fuel Economy Data Stratified by Manufacturer and Vehicle Type (Excel) (1.89MB)

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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