Particularly in commercial vehicles, piston rings are essential parts of internal combustion engines. In addition to closing the combustion chamber and regulating oil consumption, they also help transport heat from the piston to the cylinder wall. Engine efficiency and performance are largely dependent on properly operating piston rings. There may be serious consequences if these rings are worn out or break, especially in terms of vehicle emissions and environmental compliance. Recognizing the Connection between Emissions and Piston Rings Increased engine blow-by, or the phenomenon where exhaust gases escape from the combustion chamber into the crankcase, can be caused by damaged…