2022 Nissan Altima Coolant Capacity & Type

The 2022 Nissan Altima holds between 7.5 and 9.4 quarts (7.1 to 8.9 liters) of coolant, depending on the engine option and drivetrain configuration. As an ASE-certified master technician, I regularly service this generation of the Altima, and maintaining the correct coolant level and chemistry is critical to keeping either the naturally aspirated 2.5L or the complex 2.0L VC-Turbo engine running smoothly.

Below is your complete guide to the coolant capacity, factory specifications, and service procedures for the 2022 Nissan Altima.

Quick answer

If you are topping off or flushing the cooling system on your Altima, here are the essential specifications you need to know:

• Total cooling system capacity: 7.5 – 9.4 quarts (7.1 – 8.9 liters) depending on the powertrain.
• OEM coolant spec: Genuine Nissan Long Life Antifreeze/Coolant (Blue). This is a Phosphated Organic Acid Technology (P-OAT) formula specifically designed for Nissan's aluminum engine blocks and seals.
• Mix ratio: 50/50 pre-mix. Most Genuine Nissan Blue coolant is sold as a pre-mixed 50/50 solution with deionized water. Do not add water to a pre-mixed jug.

Capacity by engine option

The Altima’s coolant capacity varies slightly if you have the standard 2.5-liter engine, the All-Wheel Drive (AWD) model, or the high-performance 2.0-liter Variable Compression Turbo (VC-Turbo).

Note: These capacities include the heater core and the coolant reservoir tank. Always buy slightly more than the listed capacity to account for spills and future top-offs.

Flush interval

Nissan uses a Long Life coolant formula, but it doesn't last forever. The chemical additives that protect against corrosion eventually break down.

• Normal Duty: Nissan recommends the first coolant replacement at 105,000 miles or 7 years (whichever comes first). After the initial factory fill is replaced, subsequent flushes should be done every 75,000 miles or 5 years.
• Severe Duty: If you drive in extreme temperatures, idle extensively, or make frequent short trips, it is wise to inspect the coolant's freeze point and pH levels every 30,000 miles. Consider flushing at 60,000 miles to ensure optimal water pump and radiator health.

How to refill & bleed

Modern cooling systems can easily trap air, leading to localized overheating. The 2022 Altima requires a careful bleeding process, especially on the VC-Turbo model which features a highly complex cooling circuit.

1. Drain the system: With the engine completely cold, open the radiator drain petcock.
2. Refill: Close the petcock. Attach a spill-free coolant funnel to the radiator neck to prevent messes and elevate the fill point above the engine. Slowly pour in your Nissan Blue 50/50 coolant.
3. Run and Bleed: Start the engine and turn the climate control heater to maximum heat and the fan to a low setting. This opens the heater core circuit.
4. Burp the system: Let the engine idle until it reaches operating temperature and the cooling fans cycle on. You will see bubbles escaping into the spill-free funnel. Rev the engine slightly (around 2,000 RPM) for 10-second intervals to help push stubborn air pockets out.
5. Top off: Once no more bubbles appear and the heater blows hot air, shut off the engine. Let it cool, remove the funnel, install the radiator cap, and ensure the overflow reservoir is filled to the "MAX" line.

Pro Tip: For the 2.0L VC-Turbo, using a pneumatic vacuum coolant refill tool is highly recommended. The variable compression engine has complex coolant passages that are notorious for trapping air, and a vacuum filler guarantees an air-free fill.

Common cooling system issues

The 2022 Nissan Altima is generally highly reliable, but there are a few things to watch for as the mileage climbs:

• VC-Turbo Complexity: The 2.0L engine utilizes multi-way cooling valves to rapidly warm up the engine and manage the intense heat of the turbocharger. If these electronic valves fail, you may experience slow warm-ups or sudden overheating spikes.
• Thermostat sticking: On the 2.5L, standard thermostats can occasionally stick closed around the 80,000-mile mark. If your temperature gauge starts fluctuating, replace the thermostat assembly immediately.
• Water pump weepage: Keep an eye out for a crusty blue residue around the water pump weep hole. A small amount of dried coolant is normal over time, but active dripping means the pump seal is failing and requires replacement.

If you don't feel comfortable tackling a coolant flush or diagnosing an overheating issue yourself, don't risk damaging your engine. Find a trusted shop on Repairius.