The Infiniti Q50 typically requires full-synthetic motor oil with a viscosity of 5W-30, meeting API SN or newer and ILSAC GF-5 (GF-6-compatible oils are also acceptable). Always confirm the exact specification in your owner’s manual for your engine and model year.
In practice, Infiniti’s oil guidance has remained consistent across most Q50 variants: use a high-quality full-synthetic 5W-30 that meets the listed certifications. However, engine options have varied over the years (from the early 3.7L V6 to the later 3.0L twin-turbo), and regional recommendations can differ, so it’s best to verify the specification for your specific vehicle.
Engine variants and their oil recommendations
Below are the primary Q50 engine options and their oil guidance. Use these as a guide, and always check the exact specification in your manual or with a certified Infiniti technician.
3.7L V6 (Q50 models from 2014–2015)
The early Q50 used a 3.7L V6 (VQ37VHR). Infiniti’s guidance for this engine is full-synthetic 5W-30 oil, API SN or newer, and ILSAC GF-5 (GF-6-compatible oils are acceptable as a modern substitute). Use a reputable full-synthetic brand (e.g., Mobil 1, Castrol EDGE, Pennzoil Platinum).
- Oil type: full-synthetic motor oil
- Viscosity: 5W-30
- Certifications: API SN or newer; ILSAC GF-5 (GF-6-compatible oils acceptable)
- Note: Avoid using conventional mineral oils; verify any regional changes in the manual.
Conclusion: for this engine, 5W-30 full synthetic is the standard specification; always follow the manual if it lists an exception.
3.0L twin-turbo V6 (VR30DDTT, including Red Sport 400, 2016+)
Newer Q50s equipped with the 3.0L twin-turbo VR30DDTT typically require 5W-30 full-synthetic oil that meets API SN or newer and ILSAC GF-5/GF-6. The oil capacity and service intervals align with other modern Infiniti engines. Some markets may note regional variations, so confirm local recommendations with the manual or a dealer.
- Oil type: full-synthetic motor oil
- Viscosity: 5W-30
- Certifications: API SN+ or newer; ILSAC GF-5/GF-6
- Notes: Regional specifications can vary; verify in the manual or with Infiniti.
Conclusion: for the VR30DDTT engine, 5W-30 full synthetic is the standard choice; check your manual if your region lists an alternative grade.
When in doubt, always refer to the exact oil specification printed in your owner’s manual or consult a certified Infiniti technician to ensure compatibility with your specific model year and engine.
Choosing the right oil and practical tips
To help you select the right oil and avoid common pitfalls, keep these points in mind.
- Always choose a full-synthetic motor oil that meets API SN or newer and ILSAC GF-5 or GF-6.
- Use 5W-30 as the default viscosity for most Infiniti Q50 engines unless the manual specifies an exception.
- Prefer reputable brands (e.g., Mobil 1, Castrol EDGE, Pennzoil Platinum) that offer full synthetic oils meeting the required certifications.
- Do not substitute conventional mineral oils or oil “blends” unless the manual explicitly allows them.
- When in a region with extreme temperatures or specific service advice, verify any regional grade recommendations with the dealer.
Bottom line: for an INFINITI Q50, a high-quality full-synthetic 5W-30 oil that meets API SN or newer and ILSAC GF-5/GF-6 is the standard choice across most model years and engines. Always confirm the exact specification for your vehicle in the owner’s manual.
Summary
In short, use a full-synthetic 5W-30 motor oil that meets API SN or newer and ILSAC GF-5/GF-6 for most Infiniti Q50 models. The exact grade and approvals can vary by engine (3.7L V6 early models vs. 3.0L twin-turbo in later years) and by region, so always check the owner’s manual or consult a dealer to ensure you meet the specific requirements for your vehicle.