1. Advanced Combustion
and Emission Control Roadmap. U.S.
DRIVE, 2018. https://www.energy.gov/eere/vehicles/downloads/us-drive-advanced-combustion-and-emission-control-technical-team-roadmap (accessed Oct 19, 2018).
2. A Historical Analysis of the Co-evolution of Gasoline Octane Number and Spark-Ignition Engines
3. Thomas, J.; West, B.; Alleman, T.; Melendez, M.; Shirk, M. History of Significant Vehicle and Fuel Introductions in the United States; ORNL/TM-2016/117; Oak Ridge National Laboratory: http://www.osti.gov/scitech/, September, 2017.
4. Transportation
Energy Data Book (TEDB); Oak Ridge
National Laboratory, 2018. https://cta.ornl.gov/data/index.shtml (accessed 19 October 19, 2018).
5. Economic and Environmental Benefits of Higher-Octane Gasoline