my stock radiator crapped out on me last week and its leaking now and i have been using tap water in it since just to make it to and from work everyday. i get my new mishimoto radiator tomorrow and i was wondering with using that tap water if i should use a bottle or two of that super radiator flush stuff cuz of the possible water deposits.

 

you probably should but i wouldnt. just look at what color the water is when you drain it before you put in the new one. ive ran tap water for over a year in my old hatch but im cheap.

 

well i go through about a 1/4 gal of water every 30 min of driving. so the water in there is always fresh.