I have a slow leak in the radiator and until I can afford to get it fixed I need to add more water and/or coolant. Question: Is the only place to add water and/or coolant where it says antifreeze and coolant? Is there a separate place to add water directly to the radiator? And do I add just coolant or a combo of water and coolant?

 

Did you check the side of radiator? There's one or two rubber pieces there that might be causing a leak... its what was happening to mine.. and no there isn't any other spot other then that reservoir.. its a closed system.