cracked water jacket in the head
If the hose is leaking, replace it.
antifreeze is more likely to be leaking from the water pump and running down where it appears to leaking from crank pulley
No. All antifreeze types are not priced on quality but brand name. This should not have any bearing on your radiator leaking.
A 2007 Dodge Caravan uses five year HOAT antifreeze. ZEREX sells it as G05.
Yes
Red
Green
It's welded in like a muffler. Any muffler shop can do it for you.
A 2001 Dodge Caravan uses red, five year, HOAT type coolant.
Green.
A 2008 Dodge uses red, five year antifreeze. It is not the same as GM Dexcool.
You have a leak, without knowing what is leaking you can not get a quote.