Biodiesel is one of the potential alternate source of energy, various policies are now been implemented, in the urge for more and more production and utilization of biodiesel. In the parallel context, lot of research is been done to identify and prove the feasibility of these oils, but one place were the biodiesel production process if finding itself in trouble is in identifying its properties, which vary drastically with temperature and petro-diesel blending. In this research work, two most prominent biodiesels based on Jatropha Oil and Palm Oil were taken and their thermo-physical...