How do you add antifreezecoolant to 1992 Ford Explorer?

Add the 50 / 50 mix of antifreeze and preferably distilled water to the engine coolant reservoir on the drivers side of the engine compartment ( carefull you don't put coolant in the windshield washer fluid reservoir - they are side by side ) or , if the engine is completely cool , you can remove the radiator cap and add directly to the radiator , and then re-install the radiator cap