The 2021 Hyundai Palisade’s cooling system holds roughly 7.0 to 7.7 quarts (about 6.6 to 7.3 liters) of engine coolant when drained and refilled. Exact capacity depends on the engine and purge configuration, so consult the owner's manual or a Hyundai dealer for the precise specification.
Capacity overview
The total capacity covers the entire cooling loop: radiator, engine block, heater core, hoses, and the expansion reservoir. The heater core circuit is included in the total, so the number reflects the full system when filled correctly.
- Engine cooling system total capacity: approximately 7.0–7.7 quarts (6.6–7.3 liters).
- Reservoir/expansion tank portion: a fraction of the total, typically less than 1 quart (about 0.95 liter).
- Variations: small differences may occur by trim, purge configuration, or service modifications.
Understanding the total capacity helps in planning coolant changes, but always verify the exact specification in the owner's manual or service bulletin for your vehicle’s configuration.
Maintenance notes and best practices
When performing a coolant replacement, following best practices ensures a proper fill and air purge. The steps below outline a typical drain-and-fill process used by many Hyundai technicians. Always refer to the service manual for model-specific instructions.
DIY drain-and-fill steps
The following steps are general guidelines for a typical 3.8L Palisade cooling system. Ensure the engine is cool and you use the correct coolant type as specified by Hyundai.
- Prepare the vehicle: park on level ground, engage the parking brake, and wear protective gear.
- Drain the old coolant from the radiator drain valve or bottom hose, and collect it for proper disposal.
- Open bleed ports to remove air pockets as you refill.
- Refill with the recommended coolant to the proper level in the radiator neck and reservoir.
- Run the engine at idle with the radiator cap loosened to bleed air; top up as needed.
- Check for leaks and recheck levels after the engine has reached operating temperature and cooled down.
Note: The exact procedure and the amount of coolant to add may vary. If you’re unsure, have a professional perform the service to avoid air locks and improper mixture.
Summary
For the 2021 Palisade, plan on roughly 7.0 to 7.7 quarts (6.6–7.3 liters) of engine coolant in the cooling system when fully drained and refilled. Variations exist, but this range covers typical configurations. Always consult the owner's manual for the exact specification and use the correct coolant type. Regular maintenance helps prevent overheating and extends engine life.