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In the United States and Canada, octane ratings are in AKI, commonly shown as "(R+M)/2". All states require gas pumps to be labeled with the correct octane level and nearly all states do regular testing to make sure gas stations are in compliance. A minimum 82 octane fuel is recommended for most vehicles produced since 1984.
Using gasoline of a higher octane than an engine is designed for cannot increase its power output. Octane became well known in American popular culture in the 1960s, when gasoline companies boasted of "high octane" levels in their gasoline advertisements. The compound adjective "high-octane", meaning powerful or dynamic, is recorded in a ...
Octane is a component of gasoline and petroleum. Under standard temperature and pressure, octane is an odorless, colorless liquid. Like other short-chained alkanes with a low molecular weight, it is volatile, flammable, and toxic. Octane is 1.2 to 2 times more toxic than heptane. [5]
E85 is an abbreviation typically referring to an ethanol fuel blend of 85% ethanol fuel and 15% gasoline or other hydrocarbon by volume. In the United States , the exact ratio of fuel ethanol to hydrocarbon may vary according to ASTM 5798 that specifies the allowable ethanol content in E85 as ranging from 51% to 83%. [ 1 ]
Readers on transparency at the gas station and water waste in the Coachella Valley. Skip to main content. Sign in. Mail. 24/7 Help. For premium support please call: 800-290-4726 more ways ...
Natural gasoline is rather volatile and unstable, and has a low octane rating, but can be blended with other hydrocarbons to produce commercial gasoline. [4] It is also used as a solvent to extract oil from oil shale. [4] Its properties are standardized by GPA Midstream (formerly Gas Processors Association). [5]
That estimate, given the average retail price for a gallon of gas was about $4.49 in the second quarter of 2022, according to Statista, indicates the SPR release only slightly lessened the price ...
Liquefied petroleum gas, ... and has a high octane rating ... At levels of 2000 ppm, 10% of the lower explosive limit, ...