The document discusses converting waste plastic into a valuable fuel through pyrolysis. Pyrolysis involves heating plastic in the absence of oxygen to break the large polymer molecules into smaller hydrocarbon chains. The researchers conducted pyrolysis on waste plastic and analyzed the characteristics of the resulting fuel, finding improvements over the previous values for density, viscosity, specific gravity, flash point, fire point, cloud point, and pour point. Specifically, they saw improvements of 0.12-12.5% in these properties. The properties of the plastic fuel were now very similar to petrol and diesel, suggesting it can be used in engines without modifications. Thus, pyrolyzing plastic waste allows its use as a fuel while addressing issues of plastic pollution and fuel shortage.