NISSAN Genuine Long Life Antifreeze/Coolant 1 Gallon - 50/50 Premix Blue, OEM Factory Fill

NISSAN Genuine Long Life Antifreeze/Coolant 999MP-L25500P is a factory-fill 50/50 premixed blue coolant engineered to protect modern Nissan engines and cooling systems.

This one-gallon jug contains the same high-quality blue long life coolant used as factory fill in many Nissan vehicles. It arrives premixed at a 50/50 ratio so you can add it directly to your radiator or overflow reservoir without diluting. Formulated to be compatible with aluminum and cast-iron engine components, this coolant avoids harmful additives that can shorten component life.

What makes this NISSAN coolant the original equipment choice?

Because it’s the exact formulation supplied as factory fill for compatible Nissan models, it matches the specifications and corrosion protection Nissan engineers validated. Using the OEM fluid helps maintain the chemistry intended for your car’s cooling system.

• Factory-fill formulation for Nissan vehicles
• Tested for performance and durability by Nissan engineers
• Specifically balanced for modern engine metallurgy

How do I use the 50/50 premix in my vehicle?

The coolant is supplied at a ready-to-use 50/50 concentration of antifreeze and deionized water, so no additional mixing is necessary. Fill the radiator or coolant reservoir to the level recommended by your vehicle’s service manual, and follow standard bleed and fill procedures to remove air pockets.

• Add directly to radiator or overflow reservoir—no water required
• Top up to vehicle-specified levels and bleed the system as directed
• One gallon is suitable for top-ups or partial system fills

Will this coolant protect my engine and water pump seals?

This long-life coolant avoids amines, silicates, and borates—chemistries known to stress some seals or promote pitting in certain alloys. Its formulation helps protect aluminum components and provides dependable heat-transfer performance for everyday driving and highway conditions.

• No amines or silicates that can harm water pump seals
• No borates to reduce risk of aluminum corrosion and pitting
• Designed for reliable heat transfer and corrosion resistance

How often should I replace NISSAN Long Life Antifreeze/Coolant?

Replacement intervals depend on your vehicle’s model year and driving conditions; consult your Nissan maintenance schedule for specific guidance. Many long-life coolants allow longer service intervals than conventional formulations, but periodic inspection of coolant condition and coolant testing is recommended.

• Refer to your Nissan owner’s manual for exact intervals
• Inspect coolant color and level during regular maintenance
• Consider a system flush when switching coolant types or if contamination is observed

Who is this for: Drivers who want genuine OEM coolant for Nissan vehicles—owners doing maintenance, independent technicians, and fleet managers seeking the exact factory specification. If you prefer the assurance of using the same blue long-life coolant Nissan installs at the factory, this premixed one-gallon jug provides a convenient, compatible solution for topping off or servicing compatible cooling systems.