Pyrolysis oil is the end product of waste plastic and tyre pyrolysis. Pyrolysis oil is widely used as industrial fuel to substitute furnace oil or industrial diesel. The TCD or Pyrolysis process is very successful in producing the pyrolysis oil from different feedstock. The pyrolysis oil has the fuel properties having some similarities with the diesel fuel.The calorific values for tyre and plastic pyrolysis oil are approximately 43225.9 and 46199.12 kJ/kg respectively which are approximately equal to diesel fuel that i.e. 45814.74 kJ/kg. Also, the viscosities for tyre and plastic oil are approximately 2.7 and 2.5 cP respectively which were in the range of viscosity between 1-4.11 cP observed for diesel. The flash point for tyre and plastic pyrolysis oil was observed as 68 and 100 0C which were nearly equal to diesel fuel i.e. 70 0C in case of tyre oil while it was slightly high for plastic pyrolysis oil. Also, the pyrolysis oil can be used for engine use as fuel by the upgradation techniques like vacuum distillation, thermal cracking, blending, microemulsion etc.