The 2009 Nissan Murano uses Nissan Genuine Long-Life Coolant (LLC), a premixed ethylene glycol-based coolant designed for Nissan engines. Typically, this means a 50/50 pre-diluted mix with distilled water. Use only Nissan-approved coolant to maintain the cooling system’s integrity.
Understanding the exact coolant requirement helps prevent damage from improper mixtures or incompatible formulations. If you’re unsure what’s already in the system, consult the owner’s manual or a Nissan dealer to confirm the correct specification and replacement interval.
Coolant Type and Compatibility
Below are the core guidelines for selecting and maintaining coolant in a 2009 Murano. These points help ensure proper protection against corrosion and overheating while preserving cooling system performance.
- Use Nissan Genuine Long-Life Coolant (LLC) or an equivalent ethylene glycol–based HOAT (Hybrid Organic Acid Technology) coolant that is compatible with Nissan engines and labeled as phosphate- and silicate-free.
- Buy premixed 50/50 coolant (the usual format for LLC) or ensure any concentrate you buy is mixed to a 50/50 ratio with distilled/deionized water before use.
- Avoid Dex-Cool (GM), universal green coolant, or any other brands not explicitly labeled as compatible with Nissan vehicles, as mixing can cause deposits and cooling issues.
- If switching from a different coolant type, perform a complete cooling-system flush to remove residuals and prevent adverse reactions between formulations.
Adhering to these guidelines helps maintain corrosion protection, proper heat transfer, and optimal engine temperature regulation in the Murano's cooling system.
Maintenance and Replacement Tips
When it’s time to service the coolant, follow these steps to perform a safe and effective refill. Always ensure the engine is cool before starting and dispose of old coolant responsibly.
- Gather materials: Nissan Genuine Long-Life Coolant (or an equivalent compatible HOAT coolant), distilled/deionized water if needed, a clean drain pan, funnel, and gloves.
- Ensure the engine is cool, then place the drain pan under the radiator drain plug and open the drain to remove the old coolant.
- Close the drain, then flush the system with distilled water to remove any old residue. Repeat until the flushed water runs clear.
- Fill the system with a 50/50 premixed coolant solution (or mix concentrate with distilled water to achieve 50/50), using a funnel to avoid spills.
- Start the engine and run with the radiator cap off until the thermostat opens, then add coolant as needed to bring the level to the recommended mark. Reinstall the cap once the level stabilizes.
- Check for leaks, bleed any air pockets from the system, and dispose of used coolant and containers according to local regulations.
Keep in mind that coolant service intervals vary by market and model year. Refer to the owner’s manual or your Nissan dealer for the exact replacement schedule and specifications. Never mix unknown coolants, and avoid reusing old coolant beyond its safe lifespan.
Alternatives and compatibility
If Nissan Genuine Long-Life Coolant isn’t available, choose an ethylene glycol-based coolant labeled as compatible with Nissan vehicles and HOAT-type formulations. Ensure it is phosphate- and silicate-free and suitable for use in automotive cooling systems. When in doubt, consult a Nissan service professional to avoid compatibility issues.
Summary
In a 2009 Nissan Murano, the recommended coolant is Nissan Genuine Long-Life Coolant (LLC), typically a 50/50 premixed ethylene glycol-based coolant. Use only Nissan-approved coolant or an explicitly compatible HOAT formulation, and avoid mixing with Dex-Cool or unrelated brands. Following proper replacement procedures and maintenance intervals will help preserve cooling-system performance and engine health. For precise intervals and specifications, always refer to the owner’s manual or contact a Nissan dealer.