2018 Expedition/Navigator, 2018-2019 F-Super Duty and 2019 E-Series/F-650/F-750 vehicles built on or after 9-Jul-2018 and 2019 F-150/Transit vehicles built on or after 2-Jan-2019 are filled with the new Motorcraft Yellow Antifreeze/Coolant. When servicing the cooling system(s) on these vehicles, use Motorcraft Yellow Antifreeze/Coolant VC-13-G (CVC-13-G for Canada). Do not mix different colors or types of coolant. NOTE: The Motorcraft Yellow Antifreeze/Coolant may appear green in color due to the florescent dye used.