2018 Nissan Altima coolant capacity
The 2018 Nissan Altima holds about 8.3 to 9.7 quarts of coolant, depending on the engine - the full cooling-system capacity when cold. The factory coolant is Genuine Nissan Long Life Antifreeze/Coolant (blue).
Key takeaways
- The 2018 Nissan Altima holds about 8.3 to 9.7 quarts of coolant total, depending on engine.
- This is the full cooling-system fill with the engine cold.
- Coolant: Genuine Nissan Long Life Antifreeze/Coolant (blue). Refill to the marked level and don't mix coolant types.
| Engine | Capacity | Liters |
|---|---|---|
| 2.5L 4-cyl (QR25DE) | 8.3 qt | 7.9 L |
| 3.5L 6-cyl (VQ35DE) | 9.7 qt | 9.2 L |
Which coolant the 2018 Nissan Altima takes
The factory coolant is Genuine Nissan Long Life Antifreeze/Coolant (blue). Mixing coolant types can cause sludge and corrosion, so top up with the same product, or drain and refill completely when you switch.
Source: 2016 Nissan Service and Maintenance Guide (multi-model), 2019 Versa Sedan Owner's Manual. Confirm against your owner's manual or the label on the coolant reservoir.
What a coolant change costs
At roughly 2.1 to 2.5 gallons of capacity, the coolant itself is about $32 to $75. 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 2018 Nissan Altima
Buy Genuine Nissan Long Life Antifreeze/Coolant (blue), or a coolant that says on the jug it meets the same spec. Check whether it is premixed 50/50 or concentrate before you pour. To compare prices and reviews:
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