- Dec 24, 2003
Hi all, I was wondering, after my most recent flush and fill of the cooling system I saw that the coolant tested (with my coolant tester) at a freeze point of -45 degrees which I think means that my percentage of coolant is over 50%. I am surprised that this happened; I drained the rad, filled with distilled water, ran for awhile with heaters on, let everything cool, drained the rad again, filled with distilled and ran for awhile with heaters on, let everything cool again and then drained and filled up with 1.5 gallons toyota red coolant and the rest with distilled water. I did not want to chop that short heater hose for a prestone flushNfill kit so I chose to 'flush' the system this way. BTW the original coolant that I drained out looked really good and tested at about -35 degrees which I think is perfect 50/50. Also BTW after the second flush, the coolant mix coming out was hardly red; just a slightly pinkish color. If my prestone coolant tester is reading -45 degrees does that mean that my coolant is over 50% of the system and if so is that harmful in any way; should I drain out a little of the coolant mix and add more distilled water? Thanks. For All!