What's the 2005 Dodge Magnum transmission fluid capacity?

The 2005 Dodge Magnum came in a number of different configurations, but relevant to Your question are the two different automatic transmissions that were offered. The NAG1 transmission has a service fill capacity of 10.6 quarts, with an overhaul fill capacity of 16.3 quarts. The 42RLE transmission, on the other hand, has a service fill capacity of 4.0 quarts, while its overhaul fill capacity comes in at a whopping 17.6 quarts. It's important to always fill Your Magnum with the manufacturer's recommended automatic transmission fluid type. In Your case, that's full synthetic ATF+4. It's even more important that You don't mix different types of transmission fluid, so if You're unsure what's in Your system (for instance, if You just picked up the vehicle), it's best to drain before topping.