How to change the radiator fluid on a 2005 lincoln navigator?

Same as any other car. Drain and refill.How to change the radiator fluid on a 2005 lincoln navigator?If you do not have a pitcock on the radiator, or can't find it, you can take the lower radiator hose loose at the radiator and drain the cooling system there. I have to do it that way on my wife's car.How to change the radiator fluid on a 2005 lincoln navigator?open the spicket on the bottom of the radiator