The INFINITI Q50 3.7 uses synthetic SAE 5W-30 motor oil, and the engine holds about 5.1 quarts (4.8 liters) with the filter. Always verify the exact specification for your year and market in the owner’s manual or with a dealer.
Oil type and grade
For the Q50’s 3.7-liter V6, a fully synthetic oil that meets current API and ILSAC standards is recommended. The usual viscosity is 5W-30 in most climates to balance cold-start protection with high-temperature performance.
Important standards to look for when buying oil:
- Viscosity: SAE 5W-30
- Oil type: Fully synthetic
- Standards: API SN or newer and ILSAC GF-5 or GF-6 compatible
- Manufacturer alignment: Oil that meets Infiniti/Nissan service specifications
Notes: Model-year and regional variants can apply. Always confirm the exact grade and specifications for your vehicle from the owner’s manual or a licensed Infiniti technician.
Capacity and maintenance interval
The engine capacity including the filter is roughly 5.1 quarts (about 4.8 liters). When performing an oil change, plan to refill with about this amount to reach the proper level on the dipstick.
Maintenance intervals are guided by Infiniti’s Maintenance Minder system, which adjusts based on driving conditions. In general terms:
- Normal driving: interval driven by the maintenance minder, often around 5,000–7,500 miles depending on conditions
- Severe driving (short trips, heavy traffic, extreme temperatures): more frequent changes
- After an oil change: reset the maintenance minder to recalibrate future reminders
Always rely on the vehicle’s maintenance minder for the actual interval, as it accounts for how the car is driven and environmental factors.
Model-year notes
Yearly and regional variations
Oil grade and capacity for the Q50 3.7 have remained broadly consistent across many model years, with 5W-30 synthetic oil and about 5.1 quarts required. However, there can be year-to-year or market-specific differences, so check the exact specification for your VIN in the owner’s manual or with an Infiniti dealer.
How to verify your specific spec
To ensure you use the correct oil for your car, reference the maintenance section of the owner’s manual, consult the vehicle’s label under the hood, or ask a certified Infiniti technician. VIN-specific guidance helps prevent using an oil that doesn’t meet your engine’s needs.
Summary
In short, the INFINITI Q50 3.7 takes synthetic 5W-30 motor oil, about 5.1 quarts with a filter. Use a high-quality synthetic oil that meets API SN or newer and ILSAC GF-5 or GF-6 standards, and follow the Maintenance Minder for interval guidance. Always verify year- and region-specific requirements in the owner’s manual.