Fuel economy & running costsGasoline
#67 of 493 · Infiniti cars
2021 InfinitiQX80 4WD
Standard Sport Utility Vehicle 4WD · 4-Wheel Drive · 5.6 L 8-cyl
15MPGcombined
13city
19highway
A year of fuel$5,500
CO₂ from the tailpipe594 g/mi
Figures from the EPA label (fueleconomy.gov), the same as on the car's window sticker.
Against the 493 infiniti cars
Bars are scaled to the best in the list; the mark shows the list average. Lower is better for fuel cost; higher is better for the rest. All figures are the EPA's.
Summary
2021 Infiniti QX80 4WD by Infiniti. The figures below are from US EPA fueleconomy.gov, with the page each one came from.
Details
- Model year
- 2021fueleconomy.gov · 3 Oct 2026
Efficiency
- Combined MPG
- 15fueleconomy.gov · 3 Oct 2026
- City MPG
- 13fueleconomy.gov · 3 Oct 2026
- Highway MPG
- 19fueleconomy.gov · 3 Oct 2026
Running cost
- Annual fuel cost
- $5,500fueleconomy.gov · 3 Oct 2026
- CO₂ (tailpipe)
- 594 g/mifueleconomy.gov · 3 Oct 2026
Car
- Body
- SUVfueleconomy.gov · 3 Oct 2026
- EPA class
- Standard Sport Utility Vehicle 4WDfueleconomy.gov · 3 Oct 2026
- Drive
- 4-Wheel Drivefueleconomy.gov · 3 Oct 2026
Powertrain
- Engine
- 5.6 L 8-cylfueleconomy.gov · 3 Oct 2026
- Transmission
- Automatic (S7)fueleconomy.gov · 3 Oct 2026
- Fuel
- Gasolinefueleconomy.gov · 3 Oct 2026
More infiniti cars
See the list
#1 2027 · Infiniti QX60 AWD 24Combined MPG $3,400Fuel / year #2 2027 · Infiniti QX60 FWD 24Combined MPG $3,400Fuel / year 
#3 2027 · Infiniti QX65 AWD 22Combined MPG $3,750Fuel / year #4 2027 · Infiniti QX80 2WD 18Combined MPG $4,550Fuel / year #5 2027 · Infiniti QX80 4WD 17Combined MPG $4,850Fuel / year #6 2026 · Infiniti QX60 AWD 24Combined MPG $3,400Fuel / year Listed on CarCody
Sources
- fueleconomy.gov/feg/noframes/42753.shtml· checked 3 Oct 2026