Generation of plastic wastes has increased steeply over the past few years. Solutions like landfill deposits and recycling waste are the only initiative that the government is concerned about. Due to the enormous deposition of plastic wastes, landfill deposit turns out a problem and thus is not feasible. Many researchers have undertaken alternate solution to convert plastic waste into a useful fuel source via the pyrolysis technique. This paper focuses on converting low-density polyethylene, high-density polyethylene, polypropylene, and a mixture of all into oil via pyrolysis in a self-designed reactor without any catalyst. The generated oil’s physical characteristics such as gross calorific value, specific gravity, and viscosity were later compared with the conventional fuels. The oil was further subjected to the GC-MS analysis to understand the chemical composition present. When compared with conventional fuel, plastic waste oil obtained from thermal pyrolysis showed promising results to be used as an alternative fuel, by changing waste into valuable resources and management of plastics waste for a sustainable future.