The 2009 Nissan Maxima uses SAE 5W-30 engine oil that meets API SN or newer and ILSAC GF-5 specifications. You can use conventional, synthetic-blend, or full synthetic oil as long as it meets these ratings; always confirm the exact recommendation in the owner's manual for your climate and driving conditions.
Oil specifications for the 3.5L V6
Understanding the right oil helps protect the engine and maintain performance. The 3.5L V6 is designed to run on a stable 5W-30 viscosity with modern certification standards.
Viscosity and certification
Use 5W-30 oil that is API SN or newer and ILSAC GF-5 or newer. Oils labeled as Nissan-approved or meeting Nissan specifications are acceptable choices as well.
Synthetic vs conventional
Both conventional and synthetic (including synthetic blends and full synthetic) are acceptable as long as they meet the 5W-30, API SN (or newer), and ILSAC GF-5 (or newer) standards. Synthetic oils generally offer better protection and longer drain intervals, especially in extreme temperatures or demanding driving conditions.
Note: Always verify the exact specification listed in your owner's manual or on the vehicle’s information label, since regional variations can occur.
Options that meet Nissan's specification include the following:
- 5W-30 oil meeting API SN or newer and ILSAC GF-5 or higher (conventional, synthetic-blend, or full synthetic).
- Oils labeled as Nissan-approved or Nissan-brand motor oil when available, ensuring compatibility with the engine’s seals and tolerances.
- Oils that carry the ILSAC GF-5 (or higher) and API SN (or newer) certification on the packaging.
In short, choose a 5W-30 oil that meets API SN or newer and ILSAC GF-5, in either conventional, synthetic-blend, or full-synthetic form.
Oil capacity and change guidance
Before performing an oil change, know the capacity and the basic steps involved. The Maxima’s engine holds about 5.1 quarts of oil with a filter change.
- Oil capacity: approximately 5.1 quarts (with filter).
- Oil filter: replace with a Nissan-approved filter suitable for the 3.5L V6.
- Change steps: drain the old oil, replace the filter, fill with 5W-30 to the recommended level, and check the dipstick for proper level.
After completing an oil change, recheck the level with the engine off and the car on level ground, and ensure there are no leaks. For best results, run the engine briefly, recheck, and adjust if necessary.
Summary
The 2009 Nissan Maxima requires 5W-30 oil that meets API SN or newer and ILSAC GF-5 specifications, with options ranging from conventional to full synthetic. The engine capacity is about 5.1 quarts with a new filter. Always consult the owner's manual or a Nissan service professional to confirm climate-specific recommendations and maintenance intervals.


