Biodesiel can be used in compression ignition desiel engines with no major modifications. Biofuel can be broadly defined as solid, liquid, or gas fuel consisting of, or derived from biomass.
Biodiesel prices are expected to decrease as petroleum prices are expected to continue to increase in the world market. Animal fats like tallow and lard are also being used as a raw material for biodiesel production. The first positive benefit for biodiesel is the fact that it can be made from renewable resources.
There is still a need to improve the processing method and its quality. Producing biodiesel from animal fats may not be feasible enough to replace petrodiesel just yet because of its limited supply. Biodiesel is defined as mono-alkyl esters of long chain fatty acids derived from vegetable oils or animal fats which conform to specifications for use in diesel engines.
With better gas mileage, lower emissions, and the use of renewable, domestic sources, the upsides actually make biofuel cars a greener option than even hybrids. Despite agreement in principle that biodiesel has a role to play in helping to reduce emissions unless politicians give clear guidelines about the future of renewable fuels there will continue to be a haphazard take up around the world.