The 2004 Altima generally uses 5W-30 engine oil (API SN or newer); the exact capacity depends on whether the car has the 2.5L four-cylinder or the 3.5L V6.
The 2004 Altima was offered with two engines: a 2.5-liter four-cylinder (QR25DE) and a 3.5-liter V6 (VQ35DE). In most cases, 5W-30 oil is recommended for both engines, and you can use conventional or synthetic oil. The four-cylinder holds about 4.5 quarts of oil with a filter, while the V6 requires roughly 5.5–6 quarts with a filter. Always confirm the exact specification for your VIN and climate in the owner’s manual or by consulting a Nissan service source.
Engine options and oil requirements
The following outlines the two engines and their oil needs.
- 2.5L QR25DE four-cylinder — Oil: 5W-30 (API SN or newer; conventional or synthetic acceptable). Capacity: about 4.5 quarts with filter.
- 3.5L VQ35DE V6 — Oil: 5W-30 (API SN or newer; conventional or synthetic acceptable). Capacity: about 5.5–6.0 quarts with filter.
Both engines share the same standard viscosity, with different oil capacities affecting how much oil you add during a change.
Oil specifications and climate considerations
When selecting oil, pay attention to certifications, viscosity, and compatibility with your climate.
- Viscosity: 5W-30 is the standard recommendation; 10W-30 may be acceptable in some hot climates or specific situations per some guidance, but 5W-30 is the safest default.
- Certifications: Look for API SN (or newer) and ILSAC GF-rated oils (GF-5 or newer).
- Oil type: Conventional, synthetic blend, or full synthetic are all acceptable; synthetic oils offer longer drain intervals and better protection in extremes.
Always verify the exact specification for your vehicle in the owner's manual or with a Nissan dealership, especially if you drive in extreme temperatures or have a high-mileage engine.
Summary
For a 2004 Nissan Altima, the typical oil standard is 5W-30 (API SN or newer). The 2.5L four-cylinder uses about 4.5 quarts of oil with a filter, while the 3.5L V6 uses roughly 5.5–6 quarts. You can choose conventional, synthetic blend, or full synthetic oil, ensuring it meets the API/ILSAC specifications and suits your climate. When in doubt, consult the owner’s manual or a Nissan service professional for the exact requirements tied to your vehicle.