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  2. Octane rating - Wikipedia

    en.wikipedia.org/wiki/Octane_rating

    Another type of octane rating, called Motor Octane Number (MON), is determined at 900 rpm engine speed instead of the 600 rpm for RON. [2] MON testing uses a similar test engine to that used in RON testing, but with a preheated fuel mixture, higher engine speed, and variable ignition timing to further stress the fuel's knock resistance.

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

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

    Eastern Nevada primarily uses 85/87/91 octane ratings. New Hampshire: 87 89 93 New Jersey: 87 89 93 New Jersey checks for fraudulent labeling of octane ratings. [8] New Mexico: 86 88 91 New York: 87 [9] 89 91/93 93 is widely available. North Carolina: 87 89 93 91 octane is commonly sold as "premium" in the western, mountainous part of the state ...

  4. United States vehicle emission standards - Wikipedia

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

    The Greenhouse gas score is determined from the vehicle's estimated fuel economy and its fuel type. The lower the fuel economy, the more greenhouse gas is emitted as a by-product of combustion. 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 ...

  5. Gasoline - Wikipedia

    en.wikipedia.org/wiki/Gasoline

    Octane rating is measured relative to a mixture of 2,2,4-trimethylpentane (an isomer of octane) and n-heptane. There are different conventions for expressing octane ratings, so the same physical fuel may have several different octane ratings based on the measure used. One of the best known is the research octane number (RON). The octane rating ...

  6. List of automobiles known for negative reception - Wikipedia

    en.wikipedia.org/wiki/List_of_automobiles_known...

    Driving.co.uk ranked it #14 on their list of the 23 ugliest cars ever made, [136] Auto Express ranked it #5 on their list of the ten ugliest cars ever made, [137] and Drive.com.au included in their article on the worst cars of the 20th century, calling it "one of the silliest-looking cars of the century".

  7. E85 - Wikipedia

    en.wikipedia.org/wiki/E85

    As more effort is put into maximizing an engine to take advantage of E85's higher octane rating, engines achieve greater power advantages. One car that has higher power on ethanol is the Koenigsegg CCXR, which on ethanol is the fifth-most powerful production car, with 20% more horsepower on E85 than on gasoline. According to the manufacturer ...

  8. Alcohol fuel - Wikipedia

    en.wikipedia.org/wiki/Alcohol_fuel

    Both alcohols have a high octane rating, with ethanol at 109 RON (Research Octane Number), 90 MON (Motor Octane Number), (which equates to 99.5 AKI) and methanol at 109 RON, 89 MON (which equates to 99 AKI). [2] Note that AKI refers to 'Anti-Knock Index' which averages the RON and MON ratings (RON+MON)/2, and is used on U.S. gas station pumps ...

  9. Vintage car - Wikipedia

    en.wikipedia.org/wiki/Vintage_car

    Towards the end of the vintage era, the system of octane rating of fuel was introduced, allowing comparison between fuels. [citation needed] In 1923 the gasoline additive tetraethyl lead made its debut at the Indy 500 that resulted in a boost in octane from the 1950s to the 1980s [6] In the United States drive-in restaurants were introduced as well as suburban shopping centers and motels.