Department of Mechanical Engineering;
University of Ibadan;
Ibadan;
Nigeria;
Centre for Petroleum;
Energy Economics and Law;
University of Ibadan;
Ibadan;
Nigeria;
Department of Agricultural and Bioresource Engineering;
Federal University of Technology Owerri;
Imo State;
Nigeria;
Department of Systems Engineering;
Stevens Institute of Technology;
Hoboken;
USA;
Department of Chemical Engineering;
Landmark University;
Kwara State;
Nigeria;
Catalytic Converter; Waste Frying Oil; BIODIESEL; NOx Emission; Diesel Engines;