← all 2021 Infiniti QX80 4WD trims
2021 Infiniti QX80 4WD — 5.6L 8-cyl, S7 automatic, 4WD
This 2021 Infiniti QX80 4WD (5.6L 8-cyl, S7 automatic, 4WD) takes premium gasoline. PREMIUM
15
MPG combined (13 city / 19 hwy)
$5,150
est. fuel cost / year (EPA, 15k mi)
593 g/mi
tailpipe CO₂
The EPA lists this trim as premium because that's the fuel the manufacturer specified for its mileage test. Many such engines will run on regular with slightly lower power and MPG — but check your owner's manual to see whether premium is required or just recommended.
Other 2021 Infiniti QX80 4WD trims
| Trim | Fuel | MPG | Fuel/yr |
|---|---|---|---|
| 5.6L 8-cyl, S7 automatic, 4WD | PREMIUM | 15 | $5,150 |
EPA fuel type: Premium · class: Standard Sport Utility Vehicle 4WD · retrieved 2026-06-14.