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Alternative fuels examples:
- Alcohols: This includes methanol, denatured ethanol, and other alcohols. These can be used separately or in blends of 85% or more with gasoline or other fuels.
- Compressed Natural Gas (CNG): Natural gas that is compressed for use as a fuel in vehicles.
- Liquefied Natural Gas (LNG): Natural gas that has been cooled to -162°C (-260°F) for transport and storage as a liquid.
- Liquefied Petroleum Gas (LPG): A mix of propane and butane that is stored under pressure as a liquid and used as a fuel.
- Hydrogen: A clean fuel that can be used in fuel cells to generate electricity to power vehicles.
- Coal-derived Liquid Fuels: Fuels derived from coal that are liquid at room temperature.
- Fuels derived from Biological Materials: Biofuels such as biodiesel or other fuels derived from renewable biological sources.
- Electricity: Direct use of electricity to power vehicles, such as in electric vehicles (EVs).
- Neat Biodiesel: Biodiesel that is pure and not blended with petroleum diesel.
- Any other fuel determined to be substantially not petroleum: This includes fuels that significantly reduce dependence on petroleum.
The definition also emphasizes that these alternative fuels are used to propel vehicles instead of high-sulfur diesel or gasoline, implying they are chosen for their lower environmental impact and potential energy security benefits.
These fuels are considered alternatives to traditional petroleum-based fuels due to their potential to reduce greenhouse gas emissions, improve air quality, and decrease reliance on imported petroleum. They are part of efforts to diversify the sources of energy used in transportation and to promote sustainable practices.
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