Hot Blooded GN

[speedskills]

My cars getting too hot, around 203 in 90 degree temps. I have a 160 tstat already. There is some scale in the radiator. Does anyone have a good radiator cleaner that they could recommend? Also any instructions to hotwire the fan to a switch? Any thing I'm missing?

 

[1KWIK6]

Do a search for RMI-25. It seems to work well.