The Pathfinder’s cooling system holds about 11–12 quarts (roughly 10.5–11.3 liters) of coolant when filled to spec.
In the 2008 model year, Nissan used a 4.0-liter V6 engine, and the total coolant capacity can vary slightly depending on how the system is measured (engine block, radiator, heater core, and overflow reservoir). For a full drain-and-fill, plan on approximately 11–12 quarts to reach the correct level, with minor variation based on exact configuration and components installed.
Engine and cooling system overview
The 2008 Pathfinder is powered by a 4.0-liter V6 engine (VQ40DE). Its cooling system includes the radiator, water pump, thermostat, hoses, heater core, and a expansion/overflow reservoir. Service literature typically lists a total system capacity in the 11–12 quarts range, with small variations depending on measured method and installed components.
Official capacity figures and practical notes
Common references place the total cooling capacity for the 4.0L V6 Pathfinder at about 11.3–11.6 quarts (roughly 10.7–11.0 liters). When performing a full drain and refill, you should expect to add about 11–12 quarts to reach the full mark. If the heater core or radiator has been replaced or if the system has additional accessories, the exact figure may shift slightly.
When refilling or performing maintenance on the cooling system, follow these steps:
- Ensure the engine is completely cool before starting. Never open the radiator cap while hot, to avoid scalding.
- Use the coolant specified by Nissan (50/50 premixed Nissan Long Life Coolant or an equivalent meeting Nissan specs). If using concentrate, mix with distilled water to the recommended ratio.
- Drain the old coolant from the radiator drain plug and, if desired, the engine block drain to remove the full volume.
- Fill the radiator with fresh coolant up to the top, then add coolant to the expansion/overflow reservoir to the FULL line.
- Start the engine with the heater set to HOT, and run until the thermostat opens and the upper radiator hose heats up, which helps bleed air from the system. Keep the radiator cap off during this bleed process and top off as needed.
- Turn off the engine, allow it to cool, recheck the coolant levels in the radiator and overflow reservoir, and top off again if necessary.
- Dispose of used coolant responsibly and clean up any spills, since coolant is toxic to animals and the environment.
Following these steps helps ensure an accurate fill and proper air-bleed, which supports optimal cooling performance and avoids overheating.
Additional considerations
Always verify the exact capacity using the owner’s manual or a Nissan service bulletin for your specific vehicle, as production changes or equipment variations can affect the precise amount. If you notice persistent overheating or frequent low-coolant warnings after a refill, have the system inspected for leaks, air pockets, or faulty components.
Summary
The 2008 Nissan Pathfinder generally holds about 11–12 quarts (10.5–11.3 liters) of coolant in its cooling system. Use the recommended Nissan coolant, perform a careful bleed after refilling, and confirm levels when the engine is cold. For exact specifications, consult the owner's manual or a Nissan service database.