We just had a rework of the cooling system as the fan would not turn on by itself as designed. Found the fan had aged and took near 40 amps to turn it.
To replace the fan, the radiator was pulled. Hence we needed to redue the collant. Used to run over 200 degree ( 205 - 208 ).
As it turned out, we run about 200 degrees in the 96 degree heat with 50/50 and 1 bottle of WW.
That is good for a stop light.
So it works for us.
Just weighing in.