Part of the theoretical and practical lectures in the Workshop of Cars for first-stage students at the University of Technology If Lecturer Haitham Mohammed Ibrahim gave a theoretical lecture entitled (Main gasoline engine systems) The students were introduced to the most important system, which is the lubrication system, and explained its importance, functions, needs, and the lubrication mechanism of the engine The students were trained on how to disassemble the engine, where the pump, sump, and oil channels are located, and the parts it connects to, and how to extend the life of the engine.