- Gas
- Small SUVs
- MY2022–2025
Infiniti QX55 MPG & Fuel Cost by Year
4 model years · 2022–2025
15,000 mi/yr · premium gasoline $5.36/gal (U.S. average, Sep 2026)
Infiniti QX55 fuel economy at a glance
EPA has rated the Infiniti QX55 for 4 model years, 2022 to 2025. Across those years its combined rating runs 25 MPG. The latest model year, 2025, has 1 configuration rated 25 MPG combined and costing $3,180 a year to fuel at premium gasoline $5.36/gal (U.S. average, Sep 2026). The most efficient configuration on record since 2022 is the 2025 QX55 2.0L 4-cyl turbo AWD, at 25 MPG.
Infiniti QX55 MPG by year
| Year | Gas (MPG) | $/yr |
|---|---|---|
| 2022-2025 Generation page | ||
| 2025 | 25 | $3,180 |
| 2024 | 25 | $3,210 |
| 2023 | 25 | $3,200 |
| 2022 | 25 | $3,230 |
Costs use the current EIA price set and 15,000 miles a year for every year, so years are comparable. Green marks the best year for each powertrain.
Infiniti QX55 generations
1 generations between 2022 and 2025. Open one for the table of every model year and configuration.
2025 powertrain options
More Infiniti models
Frequently asked questions
What is the Infiniti QX55's gas mileage by year?
EPA combined ratings for the Infiniti QX55 run 25 MPG across model years 2022 to 2025. The latest year, 2025, is rated 25 MPG.
Which Infiniti QX55 model year has the best gas mileage?
The 2025 Infiniti QX55 QX55 2.0L 4-cyl turbo AWD has the highest combined rating since 2022, at 25 MPG.
How much does a Infiniti QX55 cost to fuel per year?
For MY2025, EPA-rated configurations cost $3,180 a year to fuel, driving 15,000 miles at premium gasoline $5.36/gal (U.S. average, Sep 2026). The most efficient one costs $3,180.
Has the Infiniti QX55's fuel economy improved over time?
Not much. The most efficient configuration is rated 25 MPG in both 2022 and 2025.