2003 Nissan Altima coolant capacity
The 2003 Nissan Altima holds about 7.3 to 7.9 quarts of coolant, depending on the engine - the full cooling-system capacity when cold.
Key takeaways
- The 2003 Nissan Altima holds about 7.3 to 7.9 quarts of coolant total, depending on engine.
- This is the full cooling-system fill with the engine cold.
- Refill to the marked level, and use the coolant type your owner's manual specifies.
| Engine | Capacity | Liters |
|---|---|---|
| 2.5L 4-cyl (QR25DE) | 7.3 qt | 6.9 L |
| 3.5L 6-cyl (VQ35DE) | 7.9 qt | 7.5 L |
What a coolant change costs
At roughly 1.9 to 2 gallons of capacity, the coolant itself is about $29 to $60. A shop charges $70 to $120 for a drain and fill, or $100 to $250 for a full flush. Use the specification the manufacturer lists - mixing coolant chemistries is what turns a cheap service into a water-pump job.
Ranges aggregated from published 2026 US repair-cost and parts price guides, including RepairPal and Car Talk. Prices vary by region, brand, and vehicle - treat these as a sanity check on a quote, not a fixed price. Drain and fill vs flush →
Coolant for your 2003 Nissan Altima
Buy the coolant type your owner's manual specifies and check it on the jug - the wrong type can gel or corrode the system. Amazon's results are filtered to this vehicle, but the type is on you to match. To compare prices and reviews:
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