Newly, many research studies have confirmed that the pyrolysis has gained significant importance as an effective technique in addressing the waste management crisis and as an alternative fuel to tackle the depletion of fossil fuels. The present study evaluated five different types of plastic waste, namely PP, PS, LDPE, PET, and HDPE, as well as two plastic blends PS/PET, and PWM. The study investigates the production of bio-oil through thermal pyrolysis at a range of temperatures from 400°C to 600°C, with increments of 50°C. The experiments were conducted using a 2.2 liters semi-batch reactor with 21.5oC/minute heat rate. The results revealed that PS yielded the highest amount of bio-oil (83% wt) at 450 oC optimum temperature. On the contrary, the lowest amount of oil recorded for PET type, but when mixed with PS type through co-pyrolysis process, the oil content increased for all concentrations. 25% PS recorded the highest positive synergistic effect (+4), and the oil content increased to 27% wt at 450 oC, PWM obtained the maximum bio-oil at 40%wt at 500 oC