The Infiniti QX80's 5.6-liter V8 generally requires synthetic motor oil, with 5W-30 full synthetic being the standard recommendation. This guidance helps optimize performance, fuel economy, and engine protection across driving conditions.
This article explains the oil type, capacity, and maintenance intervals for the QX80, including how requirements have evolved across model years and practical tips for keeping the engine in good condition.
Oil type and viscosity
Below is a quick reference to the key oil specifications for the QX80. It is always best to confirm the exact requirements in your owner’s manual or with a Nissan/Infiniti dealer for your specific model year.
- Viscosity: 5W-30
- Oil type: Full synthetic (recommended; synthetic blends are sometimes acceptable but full synthetic is standard)
- Oil capacity: Approximately 7 quarts (6.6 liters) with filter
- OEM guideline: Use oil that meets Infiniti/Nissan service specifications for the 5.6L V8
Following these oil specifications helps ensure reliable startup in cold weather, robust protection at highway speeds, and compatibility with the engine’s lubrication system.
Maintenance intervals and practical tips
Oil-change timing depends on driving conditions and the type of oil used. The guidelines below reflect common practice for the QX80 with synthetic oil, but always defer to the owner's manual for your year. The list that follows provides a concise reference before you plan services.
- Normal driving with synthetic oil: about 7,500 miles (12,000 kilometers) between changes
- Severe driving (short trips, heavy towing, frequent extreme temperatures): about 5,000 miles (8,000 kilometers) between changes
- Oil filter change: coincides with every oil change
- Fuel economy and warranty considerations: follow the OEM schedule to maintain coverage and engine longevity
In practice, many QX80 owners who tow or regularly drive in hot climates opt for more frequent changes, while those who drive gently and use synthetic oil may extend intervals within the vehicle’s recommendations. Always monitor oil level and condition, and consult a dealer if you notice unusual consumption or contamination.
Model-year notes
2010–2013: Early QX56/QX80 era
Early models used the 5.6L V8 with standard synthetic oil recommendations aligned to the Nissan/Infiniti guidelines of the time. The oil capacity remains in the vicinity of 7 quarts with filter, and 5W-30 full synthetic was commonly advised.
2014–present: VK56VD and ongoing updates
Since the mid-2010s, the QX80 has continued using a 5.6L V8 with oil requirements that emphasize high-quality synthetic oil and adherence to Infiniti/Nissan specifications. The basic viscosity may still be 5W-30, with the capacity and servicing intervals largely consistent, though some years have benefited from updated seasonal or API/GF requirements. When in doubt, follow the latest owner’s manual or your dealer’s guidance for your exact model year.
Summary
For the Infiniti QX80, synthetic oil is recommended for the 5.6L V8, with 5W-30 full synthetic being the standard guidance. Expect an oil capacity around 7 quarts with filter, and plan oil changes every 5,000–7,500 miles depending on driving conditions and oil type. Always verify the precise requirements in your vehicle’s owner’s manual, as year-to-year specifications can vary slightly. Proper oil choice and timely changes are essential for engine longevity and performance in subjective driving environments.