I'm not positive this applies to the FL-2005, but I know it's accurate for the FL820S:
Aftermarket Motorcraft filters are made by Purolator, and are a PureOne element in a Premium Plus can.
Mobil 1 filters are made by Champion Laboratories, the same people who make the OEM Motorcrafts. Incidentally, Champion also makes K&N oil filters...and SuperTech filters for Wally World...
WIX makes NAPA Gold filters.
All of the above filters are excellent...
