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  2. United States vehicle emission standards - Wikipedia

    en.wikipedia.org/wiki/United_States_vehicle...

    The amount of carbon dioxide emitted per liter or gallon burned varies by fuel type, since each type of fuel contains a different amount of carbon per gallon or liter. The ratings reflect carbon dioxide (CO 2), nitrous oxide (N 2 O) and methane (CH 4) emissions, weighted to reflect each gas's relative contribution to the greenhouse effect.

  3. Emission standard - Wikipedia

    en.wikipedia.org/wiki/Emission_standard

    Others regulate emissions from industry, power plants, small equipment such as lawn mowers and diesel generators, and other sources of air pollution. The first automobile emissions standards were enacted in 1963 in the United States, mainly as a response to Los Angeles' smog problems.

  4. Corporate average fuel economy - Wikipedia

    en.wikipedia.org/wiki/Corporate_average_fuel_economy

    It will save about 887,000,000 U.S. gallons (3.36 × 10 9 L) of fuel and reduce carbon dioxide emissions by 8.3 million metric tons. This 2011 single-year standard will use an attribute-based system, which sets fuel economy standards for individual vehicle models, based on the footprint model.

  5. European emission standards - Wikipedia

    en.wikipedia.org/wiki/European_emission_standards

    The purpose of Directive 1999/94/EC of the European Parliament and the Council of 13 December 1999 relating to the availability of consumer information on fuel economy and CO 2 emissions in respect of the marketing of new passenger cars [63] is to ensure that information relating to the fuel economy and CO 2 emissions of new passenger cars ...

  6. Diesel fuel - Wikipedia

    en.wikipedia.org/wiki/Diesel_fuel

    Due to the higher density, diesel fuel offers a higher volumetric energy density: the density of EN 590 diesel fuel is defined as 0.820 to 0.845 kg/L (6.84 to 7.05 lb/US gal) at 15 °C (59 °F), about 9.0-13.9% more than EN 228 gasoline (petrol)'s 0.720–0.775 kg/L (6.01–6.47 lb/US gal) at 15 °C, which should be put into consideration when ...

  7. Gasoline and diesel usage and pricing - Wikipedia

    en.wikipedia.org/wiki/Gasoline_and_diesel_usage...

    Retail markup over crude oil and wholesale gasoline, 2014–2019 Oil, gas, and diesel prices RBOB Gasoline Prices. In 2008, a report by Cambridge Energy Research Associates stated that 2007 had been the year of peak gasoline usage in the United States, and that record energy prices would cause an "enduring shift" in energy consumption practices. [6]

  8. Fuel efficiency - Wikipedia

    en.wikipedia.org/wiki/Fuel_efficiency

    Fuel efficiency is dependent on many parameters of a vehicle, including its engine parameters, aerodynamic drag, weight, AC usage, fuel and rolling resistance. There have been advances in all areas of vehicle design in recent decades. Fuel efficiency of vehicles can also be improved by careful maintenance and driving habits. [3]

  9. List of countries by carbon dioxide emissions - Wikipedia

    en.wikipedia.org/wiki/List_of_countries_by...

    The following table lists the annual CO 2 emissions estimates (in kilotons of CO 2 per year) for the year 2023, as well as the change from the year 2000. [4] The data only consider carbon dioxide emissions from the burning of fossil fuels and cement manufacture, but not emissions from land use, land-use change and forestry.