Universal Oil Catch Can Tank 2 Port Baffled Reservoir With Drain Valve Breather. Oil collection tanks are used in turbocharged or high-performance racing applications where excess air and fuel vapors (leak out of the piston rings) are generated. This creates positive pressure in the crankcase. During engine operation, exhaust gas and oil mist from the rotating parts of the engine pass through the PCV valve and return to the intake port, causing the engine to burn. However, some of the oil mist and other by-products are installed along the engine inlet and eventually form the spray gun. The collection tank collects oil mist and condenses fuel vapors while allowing clean gas to return to the inlet. Made of robust high-strength plastic, the Oil Separator Segregator features anti-corrosion, anti-wear, high-temperature tolerance, and rust-proof properties, ensuring reliable quality and superior functionality. Designed for fuel pre-treatment, the cylinder oil separator breather valve effectively gets rid of water and impurities in fuel, preventing corrosion and wear to the fuel system and engine components caused by these elements., Manufacturer: HAYSXVR