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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...

    93 is widely available in the Chicago area. Elsewhere in Illinois, 93 is offered at Shell and select other stations. Many fuel stations now offer an 88-octane fuel blend that is 15% ethanol, suitable for use in some gasoline-powered automobiles from model year 2001 and newer. Indiana: 87 89 93 Iowa: 87 89 91

  3. E85 in the United States - Wikipedia

    en.wikipedia.org/wiki/E85_in_the_United_States

    In the aftermath of Hurricane Katrina in 2005, the price of E85 rose to nearly on par with the cost of 87 octane gasoline in many states in the United States, and was for a short time the only fuel available when gasoline was sold out, but within four weeks of Katrina, the price of E85 had fallen once more to a 20% to 35% lower cost than 87 ...

  4. 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 ...

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

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

    Here’s what to know about regular gasoline prices: ... Arizona: $4.10. Arkansas: $3.19. California: $5.39. ... emissions in check and tires inflated at the right pressure all improve fuel usage.

  6. 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 ...

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

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

    The price of diesel is up 33 cents in the past month, according to data from the U.S. Energy Information Administration, now at $5.32 per gallon. The United States uses about 9 million barrels of ...

  8. Vehicle inspection in the United States - Wikipedia

    en.wikipedia.org/wiki/Vehicle_inspection_in_the...

    Vehicle emissions inspection station in Wisconsin. Arizona – biennially, in Phoenix and Tucson metro areas only, depending on age and type of vehicle. [28]California – biennially for all vehicles from out-of-state, regardless of age; and all vehicles made after 1975 which are more than six years old in all or some zip codes in 41 out of 58 counties.

  9. Petroleum Administration for Defense Districts - Wikipedia

    en.wikipedia.org/wiki/Petroleum_Administration...

    The United States is divided into five Petroleum Administration for Defense Districts, or PADDs. These were created during World War II under the Petroleum Administration for War to help organize the allocation of fuels derived from petroleum products, including gasoline and diesel (or "distillate") fuel. Today, these regions are still used for ...