(US Energy Information Administration) Since 2013, the share of premium gasoline in total motor gasoline sales has steadily increased, reaching 11.3%, the highest share in over a decade, in August and September 2015. While lower gasoline prices may be supporting demand for premium gasoline, the upward trend in sales is more likely driven by changes in fuel requirements for light-duty vehicles (LDV) in response to increasing fuel economy standards, which will have widespread implications for future gasoline markets (Figure 1).
The latest Corporate Average Fuel Economy (CAFE) regulations, which were finalized in October 2012, set automaker LDV fleet-wide fuel economy for model years 2017-21 to a range of 40.3-41 miles per gallon (mpg), with standards for model years 2022-25 rising to 48.7-49.7 mpg. To meet these standards, automakers are implementing a wide range of technical solutions to improve fuel economy. These solutions include, but are not limited to, weight reduction, conventional engine and transmission efficiency improvements, better aerodynamics, and further development and sale of hybrids and electric vehicles. One significant trend is engine downsizing coupled with turbocharging.
Smaller turbocharged engines can be used to raise fuel economy while meeting or exceeding the power and torque of larger engines, allowing engine downsizing and improved fuel economy with little or no performance compromise. Turbochargers work by using a turbine driven off the exhaust gas to pressurize the intake air. The pressurized intake air allows a turbocharged engine to produce more power compared with a naturally aspirated engine of the same size.
Because turbocharging forces more air into the combustion cylinder, it increases cylinder pressure and compression. However, because of increased compression there is an increased risk for engine knock (the premature and incomplete combustion of fuel), which can damage the engine. Therefore, turbocharged engines typically require more design and operational features to prevent engine knock than naturally aspirated engines.
The octane rating of gasoline is an indicator of its resistance to spontaneous combustion. The higher the octane rating, the greater the resistance to pre-ignition, the fundamental cause of engine knock. Use of higher-octane gasoline can offset the increased risk of engine knock caused by increasing engine compression. This is why premium fuel has historically been required in performance and luxury vehicles that maximize power and torque.
In model year (MY) 2009, turbocharged vehicles accounted for 3.3% of new gasoline-fueled LDV sales. By MY 2014, their share was more than five times greater, at 17.6% of the market (Figure 2). The growth in market share of turbocharged LDVs reflects increased use of turbocharged engines in popular vehicle models. For example, the previous generation Ford Escape (MY 2007-12) offered two conventional naturally aspirated engine options, a base 2.5 liter (L) four-cylinder and a 3.0L six-cylinder. The current Ford Escape (MY 2013 - present) added a 1.6L turbo four-cylinder as the most popular engine option, and replaced the six-cylinder option with a 2.0L turbo four-cylinder. The Honda Civic (MY 2016) for the first time has an option for a 1.5L turbo four-cylinder engine. In these cases, the turbocharged models have higher fuel economy and more power than the naturally aspirated engines they replaced or supplemented. This trend is expected to continue, and turbocharged engines are projected to account for 83.3% of the LDV market by 2025.
As automakers produce more vehicles with turbocharged engines, it is likely they will recommend or require more LDVs to use higher-octane gasoline. Engine models that require premium gasoline are designed to operate only on that fuel, and the use of regular gasoline risks damaging the engine. Engine models with premium gasoline recommended will achieve full performance levels using only the higher-octane fuel, but the use of lower-octane fuel will not compromise engine integrity. In MY 2010, 12.5% of the total gasoline-fueled LDV market recommended or required higher-octane gasoline. By MY 2013, higher-octane gasoline-fueled LDVs accounted for 14.2% of the total gasoline-fueled LDV market (Figure 3).
Premium gasoline sales as a percent of total gasoline sales are likely to increase as more car models either recommend or require premium gasoline as automakers increase the use of turbocharging as one strategy to comply with increasingly stringent fuel economy standards. READ MORE and MORE (Environmental and Energy Study Institute)
More than 50,000 articles in our online library!
Use the categories and tags listed below to access the nearly 50,000 articles indexed on this website.
Advanced Biofuels USA Policy Statements and Handouts!
- For Kids: Carbon Cycle Puzzle Page
- Why Ethanol? Why E85?
- Just A Minute 3-5 Minute Educational Videos
- 30/30 Online Presentations
- “Disappearing” Carbon Tax for Non-Renewable Fuels
- What’s the Difference between Biodiesel and Renewable (Green) Diesel? 2020 revision
- How to De-Fossilize Your Fleet: Suggestions for Fleet Managers Working on Sustainability Programs
- New Engine Technologies Could Produce Similar Mileage for All Ethanol Fuel Mixtures
- Action Plan for a Sustainable Advanced Biofuel Economy
- The Interaction of the Clean Air Act, California’s CAA Waiver, Corporate Average Fuel Economy Standards, Renewable Fuel Standards and California’s Low Carbon Fuel Standard
- Latest Data on Fuel Mileage and GHG Benefits of E30
- What Can I Do?
Donate
DonateARCHIVES
- November 2024
- October 2024
- September 2024
- August 2024
- July 2024
- June 2024
- May 2024
- April 2024
- March 2024
- February 2024
- January 2024
- December 2023
- November 2023
- October 2023
- September 2023
- August 2023
- July 2023
- June 2023
- May 2023
- April 2023
- March 2023
- February 2023
- January 2023
- December 2022
- November 2022
- October 2022
- September 2022
- August 2022
- July 2022
- June 2022
- May 2022
- April 2022
- March 2022
- February 2022
- January 2022
- December 2021
- November 2021
- October 2021
- September 2021
- August 2021
- July 2021
- June 2021
- May 2021
- April 2021
- March 2021
- February 2021
- January 2021
- December 2020
- November 2020
- October 2020
- September 2020
- August 2020
- July 2020
- June 2020
- May 2020
- April 2020
- March 2020
- February 2020
- January 2020
- December 2019
- November 2019
- October 2019
- September 2019
- August 2019
- July 2019
- June 2019
- May 2019
- April 2019
- March 2019
- February 2019
- January 2019
- December 2018
- November 2018
- October 2018
- September 2018
- August 2018
- July 2018
- June 2018
- May 2018
- April 2018
- March 2018
- February 2018
- January 2018
- December 2017
- November 2017
- October 2017
- September 2017
- August 2017
- July 2017
- June 2017
- May 2017
- April 2017
- March 2017
- February 2017
- January 2017
- December 2016
- November 2016
- October 2016
- September 2016
- August 2016
- July 2016
- June 2016
- May 2016
- April 2016
- March 2016
- February 2016
- January 2016
- December 2015
- November 2015
- October 2015
- September 2015
- August 2015
- July 2015
- June 2015
- May 2015
- April 2015
- March 2015
- February 2015
- January 2015
- December 2014
- November 2014
- October 2014
- September 2014
- August 2014
- July 2014
- June 2014
- May 2014
- April 2014
- March 2014
- February 2014
- January 2014
- December 2013
- November 2013
- October 2013
- September 2013
- August 2013
- July 2013
- June 2013
- May 2013
- April 2013
- March 2013
- February 2013
- January 2013
- December 2012
- November 2012
- October 2012
- September 2012
- August 2012
- July 2012
- June 2012
- May 2012
- April 2012
- March 2012
- February 2012
- January 2012
- December 2011
- November 2011
- October 2011
- September 2011
- August 2011
- July 2011
- June 2011
- May 2011
- April 2011
- March 2011
- February 2011
- January 2011
- December 2010
- November 2010
- October 2010
- September 2010
- August 2010
- July 2010
- June 2010
- May 2010
- April 2010
- March 2010
- February 2010
- January 2010
- December 2009
- November 2009
- October 2009
- September 2009
- August 2009
- July 2009
- June 2009
- May 2009
- April 2009
- March 2009
- February 2009
- January 2009
- December 2008
- November 2008
- October 2008
- September 2008
- August 2008
- July 2008
- June 2008
- May 2008
- April 2008
- March 2008
- February 2008
- January 2008
- December 2007
- November 2007
- October 2007
- September 2007
- August 2007
- June 2007
- February 2007
- January 2007
- October 2006
- April 2006
- January 2006
- April 2005
- December 2004
- November 2004
- December 1987
CATEGORIES
- About Us
- Advanced Biofuels Call to Action
- Aviation Fuel/Sustainable Aviation Fuel (SAF)
- BioChemicals/Renewable Chemicals
- BioRefineries/Renewable Fuel Production
- Business News/Analysis
- Cooking Fuel
- Education
- 30/30 Online Presentations
- Competitions, Contests
- Earth Day 2021
- Earth Day 2022
- Earth Day 2023
- Earth Day 2024
- Executive Training
- Featured Study Programs
- Instagram TikTok Short Videos
- Internships
- Just a Minute
- K-12 Activities
- Mechanics training
- Online Courses
- Podcasts
- Scholarships/Fellowships
- Teacher Resources
- Technical Training
- Technician Training
- University/College Programs
- Events
- Coming Events
- Completed Events
- More Coming Events
- Requests for Speakers, Presentations, Posters
- Requests for Speakers, Presentations, Posters Completed
- Webinars/Online
- Webinars/Online Completed; often available on-demand
- Federal Agency/Executive Branch
- Agency for International Development (USAID)
- Agriculture (USDA)
- Commerce Department
- Commodity Futures Trading Commission
- Congressional Budget Office
- Defense (DOD)
- Air Force
- Army
- DARPA (Defense Advance Research Projects Agency)
- Defense Logistics Agency
- Marines
- Navy
- Education Department
- Energy (DOE)
- Environmental Protection Agency
- Federal Energy Regulatory Commission (FERC)
- Federal Reserve System
- Federal Trade Commission
- Food and Drug Administration
- General Services Administration
- Government Accountability Office (GAO)
- Health and Human Services (HHS)
- Homeland Security
- Housing and Urban Development (HUD)
- Interior Department
- International Trade Commission
- Joint Office of Energy and Transportation
- Justice (DOJ)
- Labor Department
- National Academy of Sciences
- National Aeronautics and Space Administration
- National Oceanic and Atmospheric Administration
- National Research Council
- National Science Foundation
- National Transportation Safety Board (NTSB)
- Occupational Safety and Health Administration
- Overseas Private Investment Corporation
- Patent and Trademark Office
- Securities and Exchange Commission
- State Department
- Surface Transportation Board
- Transportation (DOT)
- Federal Aviation Administration
- National Highway Traffic Safety Administration (NHTSA)
- Pipeline and Hazardous Materials Safety Admin (PHMSA)
- Treasury Department
- U.S. Trade Representative (USTR)
- White House
- Federal Legislation
- Federal Litigation
- Federal Regulation
- Feedstocks
- Agriculture/Food Processing Residues nonfield crop
- Alcohol/Ethanol/Isobutanol
- Algae/Other Aquatic Organisms/Seaweed
- Atmosphere
- Carbon Dioxide (CO2)
- Field/Orchard/Plantation Crops/Residues
- Forestry/Wood/Residues/Waste
- hydrogen
- Manure
- Methane/Biogas
- methanol/bio-/renewable methanol
- Not Agriculture
- RFNBO (Renewable Fuels of Non-Biological Origin)
- Seawater
- Sugars
- water
- Funding/Financing/Investing
- grants
- Green Jobs
- Green Racing
- Health Concerns/Benefits
- Heating Oil/Fuel
- History of Advanced Biofuels
- Infrastructure
- Aggregation
- Biofuels Engine Design
- Biorefinery/Fuel Production Infrastructure
- Carbon Capture/Storage/Use
- certification
- Deliver Dispense
- Farming/Growing
- Precursors/Biointermediates
- Preprocessing
- Pretreatment
- Terminals Transport Pipelines
- International
- Abu Dhabi
- Afghanistan
- Africa
- Albania
- Algeria
- Angola
- Antarctica
- Argentina
- Armenia
- Aruba
- Asia
- Asia Pacific
- Australia
- Austria
- Azerbaijan
- Bahamas
- Bahrain
- Bangladesh
- Barbados
- Belarus
- Belgium
- Beliz
- Benin
- Bermuda
- Bhutan
- Bolivia
- Bosnia and Herzegovina
- Botswana
- Brazil
- Brunei
- Bulgaria
- Burkina Faso
- Burundi
- Cambodia
- Cameroon
- Canada
- Caribbean
- Central African Republic
- Central America
- Chad
- Chile
- China
- Colombia
- Congo, Democratic Republic of
- Costa Rica
- Croatia
- Cuba
- Cyprus
- Czech Republic
- Denmark
- Dominican Republic
- Dubai
- Ecuador
- El Salvador
- Equatorial Guinea
- Eqypt
- Estonia
- Ethiopia
- European Union (EU)
- Fiji
- Finland
- France
- French Guiana
- Gabon
- Georgia
- Germany
- Ghana
- Global South
- Greece
- Greenland
- Guatemala
- Guinea
- Guyana
- Haiti
- Honduras
- Hong Kong
- Hungary
- Iceland
- India
- Indonesia
- Iran
- Iraq
- Ireland
- Israel
- Italy
- Ivory Coast
- Jamaica
- Japan
- Jersey
- Jordan
- Kazakhstan
- Kenya
- Korea
- Kosovo
- Kuwait
- Laos
- Latin America
- Latvia
- Lebanon
- Liberia
- Lithuania
- Luxembourg
- Macedonia
- Madagascar
- Malawi
- Malaysia
- Maldives
- Mali
- Malta
- Marshall Islands
- Mauritania
- Mauritius
- Mexico
- Middle East
- Monaco
- Mongolia
- Morocco
- Mozambique
- Myanmar/Burma
- Namibia
- Nepal
- Netherlands
- New Guinea
- New Zealand
- Nicaragua
- Niger
- Nigeria
- North Africa
- North Korea
- Northern Ireland
- Norway
- Oman
- Pakistan
- Panama
- Papua New Guinea
- Paraguay
- Peru
- Philippines
- Poland
- Portugal
- Qatar
- Romania
- Russia
- Rwanda
- Saudi Arabia
- Scotland
- Senegal
- Serbia
- Sierra Leone
- Singapore
- Slovakia
- Slovenia
- Solomon Islands
- South Africa
- South America
- South Korea
- South Sudan
- Southeast Asia
- Spain
- Sri Lanka
- Sudan
- Suriname
- Swaziland
- Sweden
- Switzerland
- Taiwan
- Tanzania
- Thailand
- Timor-Leste
- Togo
- Trinidad and Tobago
- Tunisia
- Turkey
- Uganda
- UK (United Kingdom)
- Ukraine
- United Arab Emirates UAE
- Uruguay
- Uzbekistan
- Vatican
- Venezuela
- Vietnam
- Wales
- Zambia
- Zanzibar
- Zimbabwe
- Marine/Boat Bio and Renewable Fuel/MGO/MDO/SMF
- Marketing/Market Forces and Sales
- Opinions
- Organizations
- Original Writing, Opinions Advanced Biofuels USA
- Policy
- Presentations
- Biofuels Digest Conferences
- DOE Conferences
- Bioeconomy 2017
- Bioenergy2015
- Biomass2008
- Biomass2009
- Biomass2010
- Biomass2011
- Biomass2012
- Biomass2013
- Biomass2014
- DOE Project Peer Review
- Other Conferences/Events
- R & D Focus
- Carbon Capture/Storage/Use
- Co-Products
- Feedstock
- Logistics
- Performance
- Process
- Vehicle/Engine/Motor/Aircraft/Boiler
- Yeast
- Railroad/Train/Locomotive Fuel
- Resources
- Books Web Sites etc
- Business
- Definition of Advanced Biofuels
- Find Stuff
- Government Resources
- Scientific Resources
- Technical Resources
- Tools/Decision-Making
- Rocket/Missile Fuel
- Sponsors
- States
- Alabama
- Alaska
- Arizona
- Arkansas
- California
- Colorado
- Connecticut
- Delaware
- Florida
- Georgia
- Hawai'i
- Idaho
- Illinois
- Indiana
- Iowa
- Kansas
- Kentucky
- Louisiana
- Maine
- Maryland
- Massachusetts
- Michigan
- Midwest
- Minnesota
- Mississippi
- Missouri
- Montana
- Native American tribal nation lands
- Nebraska
- Nevada
- New Hampshire
- New Jersey
- New Mexico
- New York
- North Carolina
- North Dakota
- Ohio
- Oklahoma
- Oregon
- Pennsylvania
- Puerto Rico
- Rhode Island
- South Carolina
- South Dakota
- Tennessee
- Texas
- Utah
- Vermont
- Virginia
- Washington
- Washington DC
- West Coast
- West Virginia
- Wisconsin
- Wyoming
- Sustainability
- Uncategorized
- What You Can Do
tags
© 2008-2023 Copyright Advanced BioFuels USA. All Rights reserved.
Comments are closed.