I have a 2008 PT Cruiser 5spd with 81k miles on it.
It is overheating.
The issue is not freeze plugs, nor the radiator filler spout, nor the radiator which is new.
I think the water pump is leaking and may need to be replace.
Fix this, and you can get a trombone, mellophone, mellophonium, french horn, herald horn, clarinet, electric bass, amp, cases -- we can negotiate.