save your money and forget the Honda stuff. Get some premixed coolant, 50/50 so you don't have to worry about mixing it with water. You'll need to get like 2 bottles of it of which you might use like 1 1/4 - 1 1/2. Drain the old fluid, fill it up with Prestone radiator flush/cleaner and rest of it with water. Let the car run for like 10 mins or so while blasting the heat. Let it cool off and drain the fluid. Refill again with just water and let the car run for like 10 mins with the heat blasting. Let the car cool, drain the water and refill with the 50/50 mix.
Depending on how old your car is and how many miles are on it, it might be a good time to replace the thermostat and the thermostat gasket as well.