Contents [hide]
1 Blends
2 Applications
2.1 Distribution
2.2 Vehicular use and manufacturer acceptance
2.3 Railway usage
2.4 Aircraft use
2.5 As a heating oil
2.6 Cleaning oil spills
2.7 Biodiesel in generators
3 Historical background
4 Properties
4.1 Fuel efficiency
4.2 Combustion
4.3 Emissions
4.4 Material compatibility
5 Technical standards
6 Low temperature gelling
7 Contamination by water
8 Availability and prices
9 Production
9.1 Production levels
9.2 Biodiesel feedstocks
9.2.1 Quantity of feedstocks required
9.3 Yield
9.4 Efficiency and economic arguments
10 Economic impact
11 Energy security
12 Global biofuel policies
12.1 Canada
12.2 United States
12.3 European Union
13 Environmental effects
14 Food, land and water vs. fuel
15 Current research
15.1 Algal biodiesel
15.2 Pongamia
15.3 Jatropha
15.4 Fungi
15.5 Biodiesel from used coffee grounds
15.6 Exotic sources
15.7 Biodiesel to hydrogen-cell power
16 Concerns
16.1 Engine wear
16.2 Fuel viscosity
16.3 Engine performance
17 See also
18 Notes
19 References
20 External links