Bio diesel is a clear liquid, without unpleasant odor or handling characteristics, of virtually the same viscosity as mineral fossil diesel oil.
Bio diesel is one form of bio-degradable and renewable diesel fuel. It gets extracted from vegetable oils, animal oils, waste cooking oil and animal fat known as tallow. It is less defiling and a cleaner burning fuel. It can be used in standard diesel engines with negligible modifications. Bio diesel is compatible with almost all regular engines. The emission levels of Greenhouse gases like Carbon Dioxide are very low as compared to the accepted practice of petroleum diesel. Biodiesel reduce the net emission of Carbon Dioxide by at most 78.45%.