How much coolant does a 300c 5.7 Hemi take?
The Chrysler 300C with a 5.7 Hemi typically requires about 11–12 quarts of coolant for a full system fill, roughly 10.5–11.5 liters. Exact capacity depends on the year, trim, and whether options like a block heater or extra heater hoses are fitted.
Capacity ranges for common 5.7L 300C configurations
To give a practical sense of what you might expect, here is a quick capacity snapshot across typical setups.
- Typical full-system capacity: 11.0–12.0 quarts (10.5–11.5 liters).
- With an optional block heater or additional coolant circuits: up to about 13 quarts (12.3 liters).
Exact figures can vary by model year and equipment, so consult the owner's manual or service data for the precise specification on your vehicle.
Choosing the right coolant and maintenance basics
Using the correct coolant type and maintaining proper mixture is essential for engine protection and performance over time.
- Use a Chrysler-approved coolant that meets Mopar specifications, typically a HOAT or OAT formulation, and mix as directed (often 50/50 with distilled water if using concentrate).
- Avoid generic universal coolants not rated for Chrysler engines, which can cause corrosion or gasket issues over time.
- When in doubt, opt for the premixed 50/50 coolant designed for Mopar vehicles to simplify maintenance.
Always verify the exact coolant specification and mixing ratio recommended for your specific year and engine with the owner’s manual or a Chrysler dealership.
Bleeding and refilling the cooling system
- Park on level ground and ensure the engine is cool before opening any cooling system components.
- With the radiator cap off, fill the reservoir and radiator (if accessible) with the recommended coolant until full.
- Start the engine and run at idle with the heater on high and the radiator cap removed until the thermostat opens and the upper radiator hose gets warm.
- Monitor the coolant level and watch for air pockets; add coolant as needed until you maintain a steady level.
- Turn off the engine, re-install the radiator cap, and check again after the engine cools to ensure the level remains within the cold-fill range.
Bleeding procedures can vary slightly by year and whether a block heater or auxiliary heater is installed; consult the service manual for any model-specific steps.
Summary
In most cases, expect roughly 11–12 quarts (about 10.5–11.5 liters) of coolant for a full fill on a Chrysler 300C with a 5.7 Hemi, with possible increases up to about 13 quarts for certain configurations. Always verify the exact capacity for your vehicle in the owner’s manual or by consulting a dealer or qualified mechanic, and use the coolant type specified by Mopar for best long-term protection.
