Reduces harmful gas emissions in exhaust. EGR Cooler Valve 2.0HDi 9807593080. It has a certain function of liquefying the oil vapor at the position of the exhaust gas circulation valve. After the oil vapor reaches the position of the circulation valve and hit the cooling valve body, it liquefies into oil and returns to the crankcase, which can effectively avoid excessive oil consumption problem. EGR valves reduce emissions and increase engine performance. They lower fuel consumption and contribute to compliance with environmental standards., Manufacturer: SANCAK