There is an increase in the production and consumption of plastics as the day goes by. all plastics need to be disposed after their usefulness, as waste. the needs to manage this waste from plastic become more apparent. this leads to pyrolysis, which is a way of making to become very useful to us by recycling them to produce fuel oil. in this study, plastic wastes (polyethylene) were used for the pyrolysis to get fuel oil that has the same physical properties as the fuel used in aviation industry (jp-4). the experiment was carried out in such a way on, thermal pyrolysis (without the aid of a catalyst). some of the plastics wastes that are suitable for pyrolysis are: hdpf (high density polyethylene). ldpf (low density polyethylene), polypropylene, polystyrene, polyvinyl alcohol, polyoxymethylene, polyamide, polyurethane, polyphenylene, polyvinyl chloride etc pyrolysis runs without oxygen and in high temperature of about 430c. thus the problems faced by the increasing in plastic waste and the increasing fuel crisis can be eliminated by making a system which can decrease the pollution due to plastic and increasing the availability of the alternative fuel. this was made by converting the waste plastic into useful alternative oil by means of pyrolysis process.