This MEAT & DORIA Oil Separator, part number 91622, is designed to effectively manage crankcase pressure and emissions. It plays a crucial role in the crankcase ventilation system by separating oil mist and vapors from the blow-by gases that are returned to the intake system. Proper functioning of the oil separator is essential for maintaining engine cleanliness and performance. By removing oil from the vented gases, it prevents the buildup of sludge and carbon deposits within the engine components, intake manifold, and turbocharger (if applicable). This leads to improved engine efficiency and longevity. MEAT & DORIA is a reputable brand known for producing reliable automotive components. This oil separator is manufactured to meet stringent quality standards, ensuring a precise fit and dependable operation. Replacing a faulty or clogged oil separator can resolve issues such as increased oil consumption, rough idling, and exhaust smoke.