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  2. List of U.S. states by standard octane ratings - Wikipedia

    en.wikipedia.org/wiki/List_of_U.S._states_by...

    88.5 90 Arizona: 87 89 91 Arkansas: 87 89 91/93 Northwest Arkansas primarily sells 87/89/91 octane. 93 octane is available at select Kum & Go's in the Northwest and Central regions of the state. California: 87 89 91 Colorado: 85 87 91 Connecticut: 87 89 93 86 octane may be sold if labeled as economy [1] Delaware: 87 89 93 Florida: 87 [2] 89 93

  3. E85 in the United States - Wikipedia

    en.wikipedia.org/wiki/E85_in_the_United_States

    All data August 2014 from the Department of Energy, e85prices.com, [2] and E85refueling.com. [3] [4] [5] Links go to each state's list of stations; see notes below for caveats. For each state the total number of facilities is given. As of August 1, 2014, there are now 3,354 stations in the U.S. selling E85.

  4. Octane rating - Wikipedia

    en.wikipedia.org/wiki/Octane_rating

    The octane rating of gasoline is measured in a test engine and is defined by comparison with the mixture of 2,2,4-trimethylpentane (iso-octane) and normal heptane that would have the same anti-knocking capability as the fuel under test. The percentage, by volume, of 2,2,4-trimethylpentane in that mixture is the octane number of the fuel.

  5. Analysis-Bumpy road ahead for US gasoline demand and energy ...

    www.aol.com/news/analysis-bumpy-road-ahead-us...

    While U.S. gasoline demand is unlikely to rescale the pre-pandemic peaks of 2018 as the energy transition accelerates, the pace of its decline is uncertain, illustrating the challenge for industry ...

  6. U.S. gas prices in 2024: how much is gasoline in each state?

    www.aol.com/finance/u-gas-prices-2024-much...

    At the time of writing, the national average price of regular gas is $3.62 per gallon, $0.02 higher than this time last year. Drivers who use premium gas are paying $0.07 more this year than last ...

  7. United States vehicle emission standards - Wikipedia

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

    In the United States, the emission standards for non-road diesel engines are published in the US Code of Federal Regulations, Title 40, Part 89 (40 CFR Part 89). Tier 1–3 Standards were adopted in 1994 and was phased in between 1996 and 2000 for engines over 37 kW (50 hp). In 1998 the regulation included engines under 37 kW and introduced ...

  8. U.S. gasoline prices are falling again - here's why

    www.aol.com/finance/explainer-u-gasoline-prices...

    The four-week moving average of gasoline demand is 2.4% lower than this time last year, while refinery utilization is 5% higher. U.S. gasoline prices rose earlier this year, peaking in June ...

  9. Fuel taxes in the United States - Wikipedia

    en.wikipedia.org/.../Fuel_taxes_in_the_United_States

    The first federal gasoline tax in the United States was created on June 6, 1932, with the enactment of the Revenue Act of 1932, which taxed 1¢/gal (0.3¢/L). Since 1993, the US federal gasoline tax has been unchanged (and not adjusted for inflation of nearly 113 percent through 2023) at 18.4¢/gal (4.86¢/L).