well as far as bleeding your car may have a bleeding scew, not sure though. you can always just take the radiator car off when the car is cold and let it get up to operating temp(when the thermostat opens up). your fan should kick on 1 or 2 by the time this is accomplish(or so some manuals say). do not drive with the cap off, just let it idle and the air should work its way through. as for changing the coolant, it is not good to mix antifreeze brands, so as a precaution you may want to flush and fill the system with new honda antifreeeze(comes premixed 50/50) or equivalent(antifreeze specified for aluminum engines). also, since your going to flush the system, and most likely drain the engine block of its coolant, i suggest changing the thermostat as a precaution.