How do you fill a new radiator for a Dodge Magnum?

To fill a new radiator in a Dodge Magnum, first ensure the engine is cool and remove the radiator cap. Pour a 50/50 mixture of antifreeze and distilled water into the radiator until it's full, then also fill the overflow reservoir to the "full" line. Start the engine and let it run with the heater on high to help remove air bubbles, adding more coolant as necessary until the level stabilizes. Finally, replace the radiator cap securely and check for leaks.