i recommend not too use ANY aftermarket coolant.
only use GENUINE.
from my experience, even castrol, NULON, and other expensive/cheap brands, tend to corrode, components, eg, water pumps, thermostat housings etc..
i've always used genuine honda coolant, and never a problem, where as people i know and customers, come in using just water, or other brands of coolants, come in with leaking water pumps, corroded pipes etc.

i always stress this to people when it comes to honda's and coolant.