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. Crafted from high-strength plastic, this Oil Separator Segregator boasts resistance to corrosion, wear, high temperatures, and rust, along with dependable quality and outstanding performance. Serving as a fuel pretreatment component, the cylinder oil separator breather valve efficiently eliminates water and contaminants from fuel, stopping these substances from corroding and abrading fuel system and engine parts., Manufacturer: ZTAWWCJ