well its smarter to pay a shop to repair it before you start adding do you know where the leak is since it did leak out an djust so you know most cant hook but one way but if you over fil it then they lock up an dif you dont fix leak it just drains back out costing you what you payed for it and still need to repair it too many things can be bad other than low and low or out then you have a leak really but yes if you can scre wit on thats right crank motor turn on air open can most will know three cans of coolant or two cans and one of oil or more guessing at it cost you more if you get it wrong
