The impact of waste engine oil on soil and the growth of Zea mays seeds were investigated in this paper. Three concentrations of 500mL, 1000mL, and 1500mL waste engine oil applied to the soil affected the soil and growth of Zea mays seeds. The pH of soil increased from 6.0 (control) to 6.7 (1500mL), moisture content decreased significantly [p<0.05] from 12.0 to 10.9%, while phosphorus decreased…