ABSTRACT
The negative effect of indiscriminate disposal of the Spent Engine Oil (SEO) on the fertility of soil and the living of aquatic animals has been established. While SEO has been degraded by the environmental condition of the engine, recycling the oil to regains its invaluable properties and reuse will not only minimize the effects of indiscriminate disposal but will also minimize the servicing cost of engines. This paper discusses the development of a recycling plant for SEO. Laboratory experiments reveals that the viscosity of the recycled oil at 100Oc is 0.30mm2/s compares to the fresh oil 0.4mm2/s and spent engine oil 0.15mm2/s. Also, the flash point of the recycled oil is 120OC compares to fresh oil 110OC and spent engine oil 100OC. The metal content found in the recycled oil is 5.50ppm compares to the spent oil 22.50ppm.
