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Boosting performance
Ethanol-enriched fuels (E10 is the most common in the United States) meet or exceed all performance
standards for U.S. vehicles, including:
- Heat Energy: The heat energy of all gasoline-based motor fuel varies somewhat
by formulation, region and time of year.
- Ethanol burns slightly cooler than straight gasoline: on average, a gallon of 10% ethanol-enriched
gasoline contains about 112,000 BTUs of heat energy, compared to 114,000 BTUs for straight gasoline.
- Cooler combustion temperatures contribute to increased engine longevity.
- Volatility/Vapor Pressure: Ethanol-enriched fuel meets all applicable vapor-pressure
standards
- U.S. Environmental Protection Agency (EPA).
- Octane: Adding 10% ethanol to regular unleaded gas typically increases the octane
rating from 87 to 89.5 or higher.
- This boost can reduce knocking and pinging, and allows cars with knock sensors to gain increased power.
- Phase Separation: Ethanol-enriched fuel is far more tolerant of water contamination
than regular gasoline
- Preventing phase separation and water at the bottom of the tank.
Fuel-Systems & Engines Compatability
- The issues of ethanol compatibility raised in the 1970's have long been resolved .
- Since 1980, modern fuel lines have been fully compatible with ethanol.
- Since 1990, all U.S. gasolines have contained detergents to control fuel-tank deposits that can clog
fuel filters.
- And when it comes to induction-system components, ethanol blends work well with fuel injection systems
and older carbureted vehicles.
- Because ethanol burns cleaner than regular gasoline, it leaves fewer deposits on intake valves and
combustion chambers.
- Otherwise, ethanol-enriched gasoline performs in much the same way as regular gasoline.
Environment
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Because ethanol-enriched gasoline contains more oxygen than
regular gasoline, it burns more completely, which reduces carbon monoxide emissions.
Localized Economics
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Ethanol is produced in the country where it is being used this
creates local jobs.
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Ethanol helps reduce our dependence on foreign energy sources.
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