hmmmm no i normally buy the ready mixed kind thats coolant and antifreeze together. you should refill the bottle and always check to make sure its w/i range. outside of that did the radiator have fuild in it? if it does then you have to get the car checked out. an easy way to check to see if the radiator is cracked is pour fuild in it and watch it for a few if you see it running on the floor then you got a crack which can be sealed or in my case replaced