Engine coolant, also called antifreeze, helps the car radiator regulate safe temperatures so that it will not overheat. The engine heats this anti-freezing liquid, which then stimulates a cooling effect through the radiator. Low coolant levels cause radiator temperature to drop unexpectedly, which, in turn, will solidify the fluid. Driving a vehicle in this condition can result in overheating, or worst cause engine failure. Motorists can avoid these inconvenient car situations if they perform routine coolant level checks and do refills when necessary.

Checking Nissan Coolant Level

Have a Nissan vehicle? The temperature gauge or indicator will change to "hot" if the engine is overheating. Roadside emergencies happen when least expected, sometimes in the dead of night. Say, the car gauge is indicating an overheating situation. It helps when drivers know how to do coolant level checks and can safely refill the radiator.

What Is the Nissan Antifreeze Coolant?

Nissan carries a factory-grade, a blue mixture, which contains equal parts (50 percent) water and antifreeze solution. The manufacturer recommends using this grade of antifreeze coolant to lower the risk of engine corrosion.

Steps to Check Nissan Engine Coolant Level

  1. Park on a Level Surface
    Make sure your Nissan is parked on a flat surface and the engine is turned off. Allow the engine to cool down completely before opening the hood.
  2. Open the Hood
    Locate the hood release lever inside your vehicle, usually near the driver’s side footwell, and pull it. Then, go to the front of the car, release the hood latch, and lift the hood securely.
  3. Locate the Coolant Reservoir
    Find the translucent plastic coolant reservoir in the engine bay. It’s usually labeled and located near the radiator.
  4. Check Coolant Levels
    Look at the markings on the side of the reservoir, typically labeled “FULL” (or “MAX”) and “LOW” (or “MIN”). Make sure the coolant level is between these marks.
  5. Inspect Coolant Condition
    Check the color of the coolant — it should be clean and brightly colored (often green, blue, or orange, depending on the type). If it looks dirty, rusty, or has particles, it may need to be replaced.
  6. Top Off if Needed
    If the level is below the “LOW” mark, add the correct type of coolant recommended in your Nissan’s owner’s manual. Do not open the radiator cap if the engine is hot — use the reservoir cap instead.
  7. Secure Everything
    After topping off, securely close the reservoir cap and the hood.
  8. Check for Leaks
    Occasionally check under the car and around the engine for signs of coolant leaks (puddles or wet spots).

Note: Never refill the radiator tank when the Nissan engine is still running. As a safety precaution, wait until the engine settles before adding any antifreeze coolant. Also, try to maintain a safe distance when opening the radiator cap to avoid safety hazards. Radiator coolant can cause skin burns, especially if the fluid still has a moderately high temperature.

If drivers exercise preemptive car maintenance checks, they can extend the life of Nissan model engines. Self-help guides provide practical ways to do routine car maintenance checks safely. Want to learn more DIY maintenance tips for Nissan model vehicles? Explore the Trophy Nissan blog. Feel free to contact us if you have questions about checking and refilling your Nissan engine coolant.