Not sure what an oil separator does? Watch this video -   • J&L Oil Separators: The Science Behin...  

This video is specific to the 2021-2024 F-150 5.0L V8, installation on the 2011-2020 5.0L is similar however.

Part Numbers: 3016P-B & 3016P-C

Applications this fits:
2011-2024 Ford F-150 3.5L EcoBoost
2015-2024 Ford F-150 2.7L EcoBoost
2011-2024 Ford F-150 5.0L V8
2011-2024 Ford F-150 5.0L with Roush/VMP/Whipple Superchargers
2018-2021 Ford Expedition 3.5L EcoBoost

https://www.jlosc.com/JL-3-0-oil-sepa...