What is the role of the oil control ring in an engine?

The oil control ring is specifically designed to regulate the amount of oil that reaches the combustion chamber, helping to prevent excessive oil consumption and ensuring efficient engine operation. By keeping oil from entering the combustion chamber, it helps to minimize emissions and maintain optimum combustion conditions. This prevents oil from being burned along with the air-fuel mixture, which can lead to increased emissions and potential fouling of the spark plugs.

The function of the oil control ring is critical for maintaining proper lubrication of the cylinder walls while also ensuring that the combustion process remains efficient and environmentally friendly.