Not sure where I should post this. How do I sort the cooling out on my mb2? When im on the motorway this running the temp in where it should be but as soon as im on a and b roads it go's close to the red on the temp. Its this just the way the honda engine runs or do i need a new or bigger rad? Also when i put the heater on it will go back down again or when the fan kicks in. Can anyone tell me what this could be? Thanks