Piston rings are metal rings used to fill the gap between the piston and the cylinder. They play a vital role in engines, preventing gas and oil leaks, ensuring smooth engine operation. Additionally, piston rings isolate the combustion chamber from the crankcase and regulate lubricant between the cylinder wall and piston.

If piston rings fail, such as increased emissions, inadequate compression, or increased oil consumption, engine components can suffer, ultimately affecting performance. So, timely replacement of piston rings can save money.