The short answer: most 2012 Infiniti models require a full-synthetic 5W-30 engine oil that meets API SN and ILSAC GF-5 specifications. Some engines or cold-weather settings may call for 0W-30 or 5W-20, so always verify with the owner's manual or the oil cap on your engine.
Engine-by-engine oil guidelines for 2012 Infiniti models
The 2012 Infiniti lineup uses broadly similar synthetic oil grades across its engines, but the exact viscosity can vary by model and climate. Here are typical baselines by major engine family:
- 3.7L V6 (found in the G37/M37): 5W-30 synthetic, API SN/ILSAC GF-5
- 3.5L V6 (EX35/FX35): 5W-30 synthetic, API SN/ILSAC GF-5
- 5.6L V8 (QX56): 5W-30 synthetic, API SN/ILSAC GF-5
In practice, these engines generally call for fully synthetic 5W-30 oil, but some climates or specific configurations may list a different viscosity. Always follow the manual for your exact model.
Climate considerations and alternate viscosities
In very cold climates or for certain configurations, Infiniti manuals may permit 0W-30 or 5W-20, particularly to improve cold-start performance or fuel economy. If your owner's manual specifies 0W-30, use that instead of 5W-30. For hot climates, 5W-30 remains appropriate unless the manual directs otherwise.
How to confirm the exact specification for your car
To confirm the correct oil for your 2012 Infiniti, take these steps: check the owner’s manual; inspect the oil filler cap on the engine; verify the oil specification label in the engine bay for viscosity and standards; and consult your dealership or Infiniti technical resources if in doubt. Use a high-quality fully synthetic oil that meets API SN and ILSAC GF-5 (or newer) standards.
Summary: Across most 2012 Infiniti models, the standard recommendation is a full-synthetic 5W-30 oil meeting API SN/ILSAC GF-5. Always verify the exact viscosity for your specific model and climate in the owner’s manual or on the oil cap.