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  2. Texas gas prices are dropping. Where are they now and ... - AOL

    www.aol.com/news/texas-gas-prices-dropping-where...

    The state's average gas price dropped 4.2% last week. Currently, gas prices are 76 cents away from the annual low of $2.73 in Texas. ... A year ago, the average gas price in Texas was $2.80 per ...

  3. Gasoline and diesel usage and pricing - Wikipedia

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

    The largest component of the average price of $2.80/gallon of regular grade gasoline in the United States from 2012 through 2021, representing 54.8% of the price of gas, was the price of crude oil. The second largest component during the same period was taxes—federal and state taxes representing 17% of the price of gas.

  4. Fuel fraction - Wikipedia

    en.wikipedia.org/wiki/Fuel_fraction

    With a fuel fraction of nearly 85%, the GlobalFlyer could carry 5 times its weight in fuel.. In aerospace engineering, an aircraft's fuel fraction, fuel weight fraction, [1] or a spacecraft's propellant fraction, is the weight of the fuel or propellant divided by the gross take-off weight of the craft (including propellant): [2]

  5. Corporate average fuel economy - Wikipedia

    en.wikipedia.org/wiki/Corporate_average_fuel_economy

    Prices inflation adjusted to 2008 dollars. In 2002, a committee of the National Academy of Sciences wrote a report on the effects of the CAFE standard. [2] The report's conclusions include a finding that in the absence of CAFE, and with no other fuel economy regulation substituted, motor vehicle fuel consumption would have been approximately 14 percent higher than it actually was in 2002.

  6. Texas gas prices are dropping. Here's where they are. - AOL

    www.aol.com/news/texas-gas-prices-dropping-heres...

    The state's average gas price dropped 4.2% last week. Currently, gas prices are 76 cents away from the annual low of $2.73 in Texas.

  7. Volumetric efficiency - Wikipedia

    en.wikipedia.org/wiki/Volumetric_efficiency

    It also denotes the ratio of equivalent air volume drawn into the cylinder to the cylinder's swept volume. [5] This equivalent volume is commonly inserted into a mass estimation equation based upon Boyle's Gas Law. When VE is multiplied by the cylinder volume, an accurate estimate of cylinder air mass (charge) can be made for use in determining ...

  8. Gasoline - Wikipedia

    en.wikipedia.org/wiki/Gasoline

    It is a high-volume profitable product produced in crude oil refineries. [1] ... 2 C 8 H 18 + 25 O 2 → 16 CO 2 + 18 H 2 O. By weight, ... European gas prices;

  9. Density - Wikipedia

    en.wikipedia.org/wiki/Density

    In some cases (for instance, in the United States oil and gas industry), density is loosely defined as its weight per unit volume, [2] although this is scientifically inaccurate – this quantity is more specifically called specific weight. For a pure substance the density has the same numerical value as its mass concentration.