Re: Waterless coolant Reply #20 – November 13, 2017, 12:41:13 am I flushed with deionized water and used 60 water 40% elc coolant which should give about 20% better heat transfer and freeze protection to -13f which is plenty for anywhere I plan to visit. The Evans is something I always wanted to try but never had a totally dry system nor knew how to totally dry a system, thus remained a curiosity. Quote Selected