Radiator

[mark]

I have a clio 2000 model radiator for my roadster the one with a straight spigot and one at 45 degrees

Does it matter which way up it goes?

My guess is that it shouldnt as long as your plumbing is correct but i thought i would ask you all for your opinions on the matter

Hopefully it doesnt matter as it would be much easier for my plumbing if the 45 degree is at the top pointing down