The diesel engines lead the field o

The diesel engines lead the field of commercial
transportation and agricultural machinery due to its ease
of operation, high thermal efficiency , high power
outputs and low maintenance cost. Fuel consumption of
diesel engine is quite a few times higher than that of
petrol. Due to the shortages of petroleum products and
its increasing cost, efforts are onto develop alternative
fuels, mainly to the diesel oil for full or partial
replacement. It has been found that the biodiesel are
potential fuels because of their properties, which are
similar to that of diesel and are produced easily and
renewably from the crops. At the present time biodiesel
have traditional important attention both as a possible
renewable alternative fuel and as an additive to the
petroleum based fossil fuels. Biodiesel show some