The 2013 Nissan Altima should use Nissan Genuine Long Life Coolant Type 2 (pink/purple HOAT), mixed 50/50 with distilled water.
Overview of the coolant requirement
Nissan specifies a Long Life coolant designed for Type 2 systems in many of its modern engines. This HOAT (Hybrid Organic Acid Technology) coolant protects against corrosion and provides a reliable freezing and boilover margin when mixed 50/50 with distilled water. Using the wrong type of coolant or a non-compatible mix can lead to cooling system damage and reduced performance, so it is important to follow the Type 2 specification and manufacturer guidance in the owner’s manual.
Recommended coolant options
Before replacing or topping off, consider these safe options that align with Nissan Type 2 compatibility. Each option should be used as directed on the product label, and never mixed with coolant that is not compatible with Nissan Type 2 specifications.
- Nissan Genuine Long Life Coolant Type 2 (pink/purple HOAT) — available as premixed 50/50 or as concentrate to dilute with distilled water, depending on your preference.
- A high-quality HOAT coolant that explicitly states it meets Nissan Type 2 (or “Nissan Type 2”) specification — verify the label to ensure compatibility.
- Premixed 50/50 coolant labeled for Nissan or Type 2 compatibility — convenient option that reduces handling errors.
Choosing a product that explicitly carries the Nissan Type 2 designation helps ensure proper corrosion protection and system longevity. Do not rely on green old-style coolants or universal mixes unless they clearly meet Nissan Type 2 requirements.
Maintenance and replacement steps
If you need to replace or top off the coolant, follow these steps to maintain a proper and safe process.
- Ensure the engine is completely cool before touching the cooling system to avoid scalding or pressure release.
- Place a large catch pan under the radiator drain and open the radiator drain plug (and engine block drain if equipped) to drain the old coolant completely.
- Close the drain plugs after the coolant has fully drained; you may flush with distilled water if desired, then drain again.
- Prepare the 50/50 mixture unless you are using premixed coolant. Use distilled water for mixing, not tap water.
- Fill the radiator and expansion reservoir with the 50/50 coolant mixture, leaving space for air to escape.
- Run the engine with the radiator cap off briefly to allow air to bleed from the system, then replace the cap and top up to the recommended levels.
After replacement, monitor the coolant level over the next few days and check for leaks or air pockets that may require additional topping up. If in doubt, have the system inspected by a qualified technician.
Important cautions and compatibility notes
Always verify the exact specification in your owner’s manual or with a Nissan dealer, as coolant formulations can vary by engine and market. Do not mix different coolant types unless the product explicitly states compatibility with Nissan Type 2. Using the wrong coolant can corrode cooling passages and shorten engine life.
Where to buy and how to verify
When shopping, look for label language such as “Nissan Long Life Coolant Type 2” or “Nissan Type 2 HOAT coolant.” If you are unsure, contact a Nissan service center or your local dealer for the exact specification for your vehicle’s VIN and engine.
Summary
For a 2013 Nissan Altima, the recommended coolant is Nissan Genuine Long Life Coolant Type 2 (pink/purple HOAT), typically used in a 50/50 mix with distilled water. Use compatible Type 2 HOAT coolant if the Nissan product is unavailable, and avoid mixing with non-Type 2 coolants. Follow proper replacement steps and consult the owner’s manual or a professional if you are unsure about the exact specification for your vehicle.