* Automatic Transmission: Most likely, it will need between 6-8 quarts for a complete fill and flush. However, some model years may require slightly more or less. Always check your owner's manual for the exact specification for your specific year and model.
* Manual Transmission: If your Charger RT has a manual transmission, the fluid capacity will be significantly less. You'll again need to consult your owner's manual.
It's crucial to consult your owner's manual. This manual will provide the exact specifications for your vehicle. Using the incorrect amount of transmission fluid can damage your transmission.