2019 Chevrolet Malibu Coolant Capacity & Type

The 2019 Chevrolet Malibu typically holds between 7.5 to 8.5 quarts (7.1 to 8.0 liters) of coolant, though this can vary slightly by engine. Maintaining the correct coolant type and level is crucial for the longevity and performance of your Malibu's engine.

Quick Answer

• Total Cooling System Capacity: 7.5 - 8.5 quarts (7.1 - 8.0 liters)
• OEM Coolant Spec: Dex-Cool (Orange/Pink, OAT - Organic Acid Technology, GM Dex-Cool, usually pre-mixed 50/50 with demineralized water)
• Mix Ratio: 50/50 Pre-mix or 50% concentrate with 50% distilled water

Capacity by Engine Option

The 2019 Chevrolet Malibu was offered with a few engine options, and the coolant capacity can vary slightly between them. While specific breakdowns for every engine aren't always readily available, here's a general guide:

Always consult your owner's manual for the most precise capacity for your specific vehicle configuration.

Flush Interval

Maintaining your cooling system with regular flushes is vital. The recommended intervals for your 2019 Chevrolet Malibu using Dex-Cool coolant are:

• Normal Duty: Typically every 5 years or 150,000 miles, whichever comes first.
• Severe Duty: If you frequently drive in extreme temperatures, tow heavy loads, or drive in stop-and-go traffic, consider flushing more frequently, around 3 years or 45,000 miles.

Routine inspection of coolant levels and condition is always a good practice, regardless of mileage or time.

How to Refill & Bleed

Refilling and bleeding your Malibu's cooling system properly is essential to prevent air pockets, which can lead to overheating. Always perform this procedure on a cool engine.

1. Drain: Loosen the petcock on the bottom of the radiator (if equipped) or disconnect the lower radiator hose to drain the old coolant into a suitable container. Recycle used coolant responsibly.
2. Flush (Optional but Recommended): If performing a flush, close the drain, fill with distilled water, run the engine with the heater on until warm, then drain again. Repeat until the drained water is clear. For a chemical flush, follow product instructions.
3. Refill: Close the drain. With the engine off, slowly fill the coolant reservoir with the specified Dex-Cool 50/50 mix to the "COLD FILL" line. Do not overfill.
4. Bleed Air:
   • Start the engine and run it with the heater on high (fan speed low) to open the thermostat and allow coolant to circulate.
   • Monitor the coolant level in the reservoir; it may drop as air bleeds out. Add more coolant as needed to maintain the "COLD FILL" line.
   • Some Malibu models may have a small bleeder screw on a hose or thermostat housing; if present, open it slightly to release trapped air until a steady stream of coolant emerges, then close it.
   • Squeeze the upper and lower radiator hoses gently several times to help dislodge air bubbles.
   • Continue running the engine until it reaches normal operating temperature and the radiator fan cycles on and off at least twice. This ensures the thermostat has opened fully.
5. Final Check: Once the engine is cool, recheck the coolant level in the reservoir and top off if necessary.

Common Cooling System Issues for this Generation (2016-2020 Chevrolet Malibu)

The 2016-2020 generation of the Chevrolet Malibu, including your 2019 model, can experience certain cooling system characteristics and issues. Being aware of these can help with preventive maintenance:

• Thermostat Housing Leaks: Plastic thermostat housings can become brittle and crack over time, leading to coolant leaks. Keep an eye out for pink or orange staining around the housing.
• Water Pump Leaks: The water pump, a critical component, can develop leaks, often indicated by a drip or puddle of coolant under the front of the vehicle. A failing water pump can also produce a whining or grinding noise.
• Heater Core Issues: While less common, a clogged or failing heater core can result in a lack of heat inside the cabin and sometimes a sweet smell of coolant.
• Degas Bottle/Reservoir Cracking: The plastic coolant reservoir can develop cracks, particularly around hose connections, leading to slow leaks and coolant loss.
• Coolant Temperature Sensor Malfunctions: A faulty sensor can lead to inaccurate temperature readings, causing the engine to run too hot or too cold without proper indication, or trigger a "Service Engine Soon" light.

Regular visual inspections and addressing any warning signs promptly are key to preventing more severe engine damage.

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