The CO emission varies from 0.046 g/kW h at low load to
0.86 g/kW h at full load for diesel. For 10% B WPO, it varies from 0.22 g/kW h at low load to 1.34 g/kW h for full load, for 20% B WPO it is 0.21 g/kW h at low load to 1.19 g/kW h at full load, from 0.177 g/kW h at low load to 1.30 g/kW h at full load for 30% B WPO and 0.241 g/kW h at low load to 2.26 g/kW h at high load for 40% B WPO. The results show that CO emission of waste plastic oil is higher than diesel especially at higher load and higher blend