The Infiniti M35 typically uses SAE 5W-30 full-synthetic oil. However, the exact viscosity can vary by model year and local climate, so always verify with your owner's manual or a dealership for your specific car.
Standard oil recommendation for the M35
Most M35 owners should use a full-synthetic 5W-30 oil that meets Infiniti/Nissan specifications. The following options cover common climate and driving conditions:
- 5W-30 synthetic (Infiniti/Nissan approved) — primary recommendation for normal driving and temperate climates.
- 0W-30 synthetic — suitable for extremely cold climates or winter conditions where temperatures routinely drop below freezing (as approved by Infiniti/Nissan).
- 5W-40 synthetic — may be used in hot climates or under high-load/mountain driving if your manual allows this viscosity.
Always use an oil that meets the OEM specification for your year and region, and follow the service interval recommended by Infiniti for synthetic oil.
Year-by-year and climate considerations
Because the M35 has undergone minor updates over its production years, the exact viscosity recommendation can vary by year, market, and operating temperature. To confirm the correct grade for your vehicle, consult the owner's manual, check under-hood oil labeling, or contact an Infiniti service adviser.
How to confirm the right oil for your vehicle
Reference your vehicle’s manual for the official viscosity range, look for a label inside the fuel door or under the hood, and ask your dealer if you’re unsure. An approved dealer recommendation reflects your car’s Engine Control Unit calibration and service history.
Summary
In short, the Infiniti M35 generally uses 5W-30 full-synthetic oil, with possible variations to 0W-30 or 5W-40 depending on climate and model year. Always verify with the owner's manual or a dealership to ensure you use the exact grade and specification for your car.