Typically, the Infiniti G-35 uses 5W-30 synthetic motor oil as the standard viscosity. In very hot climates, 10W-30 may be used, but always confirm with your owner's manual or a dealer for your specific year and region.
Understanding the G-35 oil requirements
The G-35’s VQ35DE 3.5-liter V6 is designed for modern motor oil that provides good protection across temperatures. Infiniti's guidelines have consistently pointed to 5W-30 as the default viscosity for most markets, with 10W-30 as an acceptable alternative in hot climates or when 5W-30 is unavailable. Always use oil that meets current API certification and ILSAC standards and ensure it is suitable for gasoline engines.
The following options summarize common climate needs for the G-35:
- 5W-30 synthetic motor oil (full synthetic or synthetic blend) meeting API SN or newer and ILSAC GF-5 or newer. This is the standard recommendation for most G-35 models.
- 10W-30 synthetic motor oil, suitable for hot climates where higher viscosity is preferred or required by local guidelines, still meeting API SN or newer and ILSAC GF-5 or newer.
In short, 5W-30 is the default choice for the Infiniti G-35; 10W-30 is a viable alternative in hotter environments or when specified by Infiniti/Nissan technicians.
Quality and certifications to look for
When shopping for oil, look for products that meet current industry certifications and that are compatible with gasoline engines. Do not rely on brand alone; confirm the oil's official specifications on the bottle or the manufacturer’s product data sheet.
Options to consider include:
- API certification: API SN (or newer) or API SP; this ensures the oil meets established performance and protection standards.
- ILSAC certification: ILSAC GF-5 or GF-6 (or newer). These are commonly found on modern, performance-oriented oils and are compatible with the G-35.
- Viscosity suitability: 5W-30 for most climates; 10W-30 in hot climates or as recommended by Infiniti/Nissan service bulletins.
- Oil type: synthetic or synthetic-blend oil is typically preferred for modern engines like the VQ35DE; conventional oil is generally not recommended for regular use in the G-35 unless specified.
Conclusion: Choose an oil that meets API SN+ and ILSAC GF-5 (or newer) and adheres to the viscosity recommended for your climate; in most cases, 5W-30 is the default.
Practical maintenance tips
To help ensure you always have the right oil in your Infiniti G-35, follow these steps before changing your oil and during routine checks.
Maintenance checklist:
- Consult the owner's manual to confirm the recommended viscosity (usually 5W-30) and certification requirements for your model year.
- Choose a high-quality synthetic or synthetic-blend oil that meets API SN (or newer) and ILSAC GF-5 (or newer).
- When shopping, verify the bottle lists the API and ILSAC standards, and the viscosity 5W-30 (or 10W-30 in certain climates).
- Follow the recommended oil-change interval for synthetic oils (typically around 5,000–7,500 miles for synthetic oils, or what your manual advises).
- Dispose of used oil responsibly and reset the oil-life monitor if equipped.
Following this checklist helps ensure your engine stays properly lubricated and protected.
Summary
For Infiniti G-35 models with the VQ35DE engine, the standard oil is 5W-30 synthetic (or synthetic-blend) that meets API SN or newer and ILSAC GF-5 or newer. In extremely hot climates, 10W-30 is an acceptable alternative. Always verify with the owner's manual or a dealer for your specific year, region, and driving conditions, and follow the recommended oil-change intervals to maintain engine health.
Which oil is better, 5W-30 or 10w40?
In other words, a lubricant with SAE 5W-30 will behave better when cold than a lubricant with SAE 10W-40. In contrast, oils with a higher SAE after the W generate thicker films of lubricant and better protect the mechanical parts when the vehicle is already hot.
Can I use 5W-30 engine oil?
5W-30 oil can be used in petrol and diesel engines in most cars, motorcycles, trucks and SUVs. If your vehicle is often used for long journeys carrying heavy loads, consider exploring a different oil category better suited to your vehicle's specific needs.
What type of oil does a G35 use?
Valvoline – High Mileage 5W-30 Full Synthetic Engine Oil, Prevents Leaks (Part No. 881169)
Does Infiniti take 5W-30?
What is the Recommended Oil for the INFINITI QX60? The INFINITI QX60 recommended oil varies by model year. For 2023 vehicles and newer, the automaker suggests 0W-20 full synthetic oil, while older models will likely need 5W-30 full synthetic oil.


