Advantages of using ethanol blends in gasoline fuels are.
- Ethanol has fewer volatile components than petrol that means fewer gas emissions from evaporation.
- As it has high oxygen content, ethanol burns more completely than gasoline and reduces harmful tailpipe emissions.
- Ethanol is also a renewable energy resource and has fewer greenhouse emissions.
Disadvantages of using ethanol blends in gasoline fuels are:
- Higher-ethanol blends produce significant levels of air pollution
- It reduces fuel efficiency.
- The research by the Department of Energy, found that ethanol is likely to 24% more carbon-intensive than gasoline due to emissions resulting from land use changes to grow corn with processing and combustion.
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