The WIX 20-1/4" x 15-5/16" OD air oil separator functions by efficiently separating oil from air. It reduces engine wear by preventing oil from entering the intake system. It is designed to maintain optimal airflow through the engine, ensuring consistent performance. Its reliable filtration extends engine oil life by maintaining its purity, minimizing oil blow-and contributing to emissions control. This component is essential for maintaining the balance between filtration and airflow, improving the overall system efficiency.