1、It can be used in turbine applications or high‑performance racing applications where excessive air leakage (leakage through piston rings) and air and fuel vapors can occur. This creates a positive pressure in the crankcase. 2、During engine operation, blow‑by gas and oil mist from the rotating components of the engine pass through the PCV valve and then be sent back to the intake port to burn the engine. 3、Some oil mist and other by‑products will settle along the engine air intake and form black smoke over time. The oil collecting tank collects this kind of oil mist and condenses the fuel vapor, and at the same time allows the clean gas to flow back to the air inlet. 4、Lightweight filter design, used in racing applications to ensure better mileage, better performance and extend engine life. Capture oil and sludge to extend engine life. 5、Comes with all the relevant accessories in this package, which is made to meet your needs and also providing much convenience for your mounting and using.