This paper presents an investigation on the performance of an oil burner system utilizing various palm biodiesel blends. Biofuel used in this study is a blend of diesel and palm olein, called palm biodiesel. The performance of burner system using palm biodiesel is based on its temperature profile and emissions generated such as nitrous oxide (NOx), sulphur dioxide (SO2) and carbon monoxide (CO). In this study, Computational Fluid Dynamic (CFD) is extensively used to simulate the combustion process in the combustion chamber. The results were validated with experimental result. The experimental data was obtained from the burner test rig. The simulation covered three main areas which are cold flow (non reacting flow), evaporation of liquid spray and Eddy Dissipation combustion. The turbulence model used is k-ε model while discrete phase modeled (DPM) was modeled using Lagrangian framework. The CFD results showed reasonable agreement with experimental for flame length while for the temperature profile the simulation results were over predicted.