advantages of Biodiesel

Biodiesel has several distinct advantages compared with petrodiesel in addition to being fully competitive with petrodiesel in most technical aspects:
・Derivation from a renewable domestic resource, thus reducing dependence onand preserving petroleum.
・Biodegradability.
・Reduction of most exhaust emissions (with the exception of nitrogen oxides,NOX).
・Higher flash point, leading to safer handling and storage.
・Excellent lubricity, a fact that is steadily gaining importance with the advent
of low-sulfur petrodiesel fuels, which have greatly reduced lubricity. Adding
biodiesel at low levels (1・%) restores the lubricity.

other advantages are
Biodiesel fuels perform just as well as regular diesel fuels. A 1998 DOE test confirmed that using low blends of biodiesel will provide an increase in fuel economy. Laboratory tests, as well as road tests, have proven that biodiesel fuels have the same horsepower and torque as regular petrodiesel engines.

Engines will last longer when using biofuels. Traditional diesel engines have a much higher rate of engine wear (lubricity). Lubricity levels are even improved at low bio concentration levels. New regulations require petrodiesel engines to lower sulfur emissions considerably, making biodiesel blends much more attractive as a practical fuel to use. Biodiesel also offers a higher cetane ignition rating, which means that there is less engine noise pollution (dieseling).

At the production level, biodiesel fuel is a clean and affordable fuel for trucks, buses, farm equipment and other forms of heavy transportation. Biofuel refineries are much more simplistic and environmentally friendly in design than typical petrochemical refineries. With the continued rise of international fuel prices, biodiesel is set to become much more popular as a fuel option in the farming and transportation industries.

some those article take from http://www.alternative-energy-news.info