2013 Nissan Altima Coolant Capacity

Understanding the cooling system in your 2013 Nissan Altima is crucial for maintaining its optimal performance and longevity. A key element of this system is the coolant, also known as antifreeze. This article provides a detailed look at the coolant capacity of your 2013 Altima, along with related information to help you maintain this critical aspect of your vehicle.

Coolant Capacity and Specifications

The 2013 Nissan Altima, depending on the engine configuration, has a specific coolant capacity. It's important to know the correct amount to ensure proper cooling and prevent damage to your engine. There are two engine options available for the 2013 Altima:

• 2.5L QR25DE 4-Cylinder Engine: The coolant capacity for this engine is approximately 7.4 quarts (7.0 liters) when completely dry, such as after an engine rebuild. However, for a standard drain and refill, you'll typically need less. Expect to use around 4.5 to 5 quarts (4.3 to 4.7 liters).
• 3.5L VQ35DE V6 Engine: This engine has a slightly larger coolant capacity. When completely dry, it holds approximately 9.8 quarts (9.3 liters). For a standard drain and refill, plan on using about 5.5 to 6 quarts (5.2 to 5.7 liters).

Important Note: These figures are approximations. Always refer to your vehicle's owner's manual for the exact coolant capacity specific to your Altima's VIN. Slight variations can occur due to factory differences.

Coolant Type

Using the correct type of coolant is just as important as using the correct amount. The 2013 Nissan Altima requires a specific type of coolant to prevent corrosion and ensure optimal cooling performance. Nissan recommends using Nissan Long Life Antifreeze/Coolant (Blue). This is a phosphate-free, ethylene glycol-based coolant specifically formulated for Nissan vehicles.

Using generic "universal" coolants is generally not recommended. These coolants may not provide the same level of protection against corrosion and may even damage your cooling system over time. Mixing different types of coolants can also lead to chemical reactions that reduce their effectiveness and can create harmful deposits within the system.

Warning: Never use coolant that is not compatible with your Nissan Altima. Doing so can cause serious damage to your engine and cooling system components.

Draining and Refilling the Coolant

Here's a step-by-step guide for draining and refilling the coolant in your 2013 Nissan Altima. Always prioritize safety and work in a well-ventilated area.

1. Preparation: Gather your tools and materials. You'll need:
   • New Nissan Long Life Antifreeze/Coolant (Blue)
   • A large drain pan
   • Wrenches or sockets (for drain plug and radiator cap)
   • Funnel
   • Distilled water (for flushing, if desired)
   • Gloves and safety glasses
2. Safety First: Ensure the engine is completely cool before starting. Never attempt to remove the radiator cap or drain the coolant while the engine is hot, as the system is pressurized and can cause severe burns.
3. Locate the Drain Plug: The radiator drain plug (also called a petcock) is typically located at the bottom corner of the radiator. Refer to your service manual for the exact location.
4. Open the Radiator Cap: Carefully loosen the radiator cap to relieve pressure. Remove the cap completely.
5. Drain the Coolant: Place the drain pan under the radiator drain plug. Open the plug by turning it counterclockwise. Allow the coolant to drain completely into the pan.
6. (Optional) Flush the System: If you suspect your cooling system is contaminated or you're switching to a new coolant type, you can flush the system with distilled water. Close the drain plug, fill the system with distilled water, run the engine for a short period (with the heater on), let it cool, and then drain the water. Repeat this process until the drained water is clear. Note: Flushing is recommended only when necessary, as it can introduce air into the system.
7. Close the Drain Plug: Once the coolant (or water) has completely drained, close the drain plug securely. Do not overtighten it, as this can damage the plug or radiator.
8. Refill the Coolant: Using a funnel, slowly pour the new Nissan Long Life Antifreeze/Coolant into the radiator. Refer to the coolant capacity figures mentioned earlier to determine the approximate amount needed.
9. Burp the System: After filling the radiator, start the engine with the radiator cap off. Turn the heater on to the highest setting. Allow the engine to run for a few minutes, watching for air bubbles escaping from the radiator. This process, known as "burping" the system, helps remove trapped air. Add more coolant as needed.
10. Check the Overflow Tank: Fill the coolant overflow tank to the "MAX" line.
11. Replace the Radiator Cap: Once the air bubbles have stopped, turn off the engine and allow it to cool completely. Replace the radiator cap securely.
12. Check for Leaks: After the engine has cooled, check for any leaks around the drain plug, radiator hoses, and radiator cap.
13. Monitor Coolant Level: Over the next few days, monitor the coolant level in the overflow tank and add more coolant as needed.

Coolant Mixtures

Nissan recommends a 50/50 mixture of coolant concentrate and distilled water for optimal freeze protection and heat transfer. This means that half of the total coolant volume should be coolant concentrate, and the other half should be distilled water. This mixture provides protection against freezing temperatures as low as -34°F (-37°C) and helps prevent the coolant from boiling over in hot weather.

In extremely cold climates, you can increase the coolant concentration to a maximum of 70% coolant and 30% distilled water. However, exceeding this ratio is not recommended, as it can reduce the coolant's ability to transfer heat efficiently and may damage cooling system components.

Remember: Always use distilled water when mixing coolant. Tap water contains minerals that can corrode the cooling system.

Troubleshooting Cooling System Issues

Several signs can indicate problems with your cooling system. Be aware of these symptoms and address them promptly to prevent further damage.

• Overheating: This is a critical sign of a cooling system problem. If your engine temperature gauge rises into the red zone, pull over immediately and allow the engine to cool. Overheating can be caused by low coolant levels, a faulty thermostat, a clogged radiator, or a malfunctioning water pump.
• Coolant Leaks: Look for coolant puddles under your vehicle or signs of leaks around the radiator, hoses, water pump, or thermostat housing. Coolant is typically green, blue, or orange in color and has a sweet smell.
• Low Coolant Level: Regularly check the coolant level in the overflow tank. If the level is consistently low, it could indicate a leak or other problem.
• White Smoke from Exhaust: This can indicate a coolant leak into the engine cylinders, often caused by a blown head gasket. This is a serious issue that requires immediate attention.
• Heater Not Working: If your heater is blowing cold air, it could be due to low coolant levels or air trapped in the cooling system.

If you experience any of these symptoms, it's essential to diagnose the problem and repair it as soon as possible to prevent costly engine damage. If you are not comfortable performing these repairs yourself, it's best to take your vehicle to a qualified mechanic.

Coolant Maintenance Schedule

Following a regular coolant maintenance schedule is essential for maintaining the health of your cooling system. Nissan recommends replacing the coolant in your 2013 Altima every 60,000 miles or 48 months, whichever comes first. However, depending on your driving conditions and the type of coolant used, you may need to replace it more frequently.

In addition to coolant replacement, it's also a good idea to periodically inspect the cooling system components, including the radiator hoses, radiator cap, and thermostat, for signs of wear or damage. Replace any worn or damaged parts as needed.

By following these guidelines, you can ensure that your 2013 Nissan Altima's cooling system operates efficiently and reliably, preventing costly engine damage and extending the life of your vehicle.

Disclaimer: This article provides general information and should not be considered a substitute for professional advice. Always consult your vehicle's owner's manual or a qualified mechanic for specific instructions and recommendations.