There was a contentious debate on FB today about the Ford OEM oil separator that comes with the CFTP and handling package cars versus aftermarket catch cans. Some stated that they would never drain the captured oil back into the engine because it had fuel, gases and condensation in it. I replied that the separated/captured oil is no different than the oil in the crankcase and that Ford designed a closed-loop system to simply return the oil from where it came. The maker of a well known catch can for these cars piped-in proclaiming how bad the captured oil is. Then, none other than Billy Johnson himself posted the below reply. Billy Johnson is the race car driver that worked with Ford Performance designing the 2020 GT500 and was instrumental in developing its track manners.