PSA: DO NOT use automotive coolant with silicates unless you want to
kill your Honda's water pump seals. Either use Honda coolant + Redline's WaterWetter, or Engine Ice.
Engine Ice is not a true antifreeze but it does add anti-boiling properties, so if you're going to be leaving it in there for a while you may wanna do 15% Ethylene Glycol (30% if using factory
50/50 premix of EG/H2O in the blue bottle) + the Redline WaterWetter that is premixed with deionized water. That will give you some boiling protection and protect it down to most any temp we experience here in NE Florida.
Pure deionized water is the best at tranferring heat but you need Ethylene Glycol or Polypropylene Glycol to raise the coolant's boiling point+ inhibit corrosion from the motor's metals reacting to each other in the coolant under heat and pressure (and munching on aluminum). The purpose of the WaterWetter is to make the coolant/water act more like pure water and adds some additional corrosion protection.
