No. All antifreeze types are not priced on quality but brand name. This should not have any bearing on your radiator leaking.
No.
Rdrah states Green....Sorry, Rdrsh, but you got it wrong. Most 2000 Dodge Grand Caravans will have a collar around the cap, which states it's a special coolant. The coolant that they are referring to is a Red HOAT-type coolant. Do NOT put regular green coolant in the vehicle with this warning collar, 'cause you can damage the engine.
Low coolant or an inoperative radiator fan.Low coolant or an inoperative radiator fan.
Most likely cause is low coolant. Check your antifreeze level.
yes it can
An antifreeze leak.An antifreeze leak.
Your water pump is bad
Yes, low coolant can cause a loss of heat in the cabin.
There are a bunch of things that can cause that. Water pump, thermostat, switch not engaging the heater, air in the heater core, not enough antifreeze in the cooling system. do i need a new thermostat
Milky oil is water or coolant in the oil. You need to find the cause and fix it. Causes include head and intake gaskets.
Low battery. Low antifreeze/coolant. I'm sure there's lots of other reasons, but those are the ones I've experienced.
Yes, it can.