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- MY2014–2027
Infiniti QX80 MPG & Fuel Cost by Year
14 model years · 2014–2027
15,000 mi/yr · premium gasoline $5.36/gal (U.S. average, Sep 2026)
Infiniti QX80 fuel economy at a glance
EPA has rated the Infiniti QX80 for 14 model years, 2014 to 2027. Across those years its combined rating runs 15–18 MPG. The latest model year, 2027, has 2 configurations rated 17–18 MPG combined and costing $4,550–$4,710 a year to fuel at premium gasoline $5.36/gal (U.S. average, Sep 2026). The most efficient configuration on record since 2014 is the 2027 QX80 3.5L 6-cyl turbo RWD, at 18 MPG. Model year 2027 is still being filled in by EPA, so its row may gain configurations.
Infiniti QX80 MPG by year
| Year | Gas (MPG) | $/yr |
|---|---|---|
| 2025-2027* (Z63) Generation page | ||
| 2027 (partial) | 17–18 | $4,550–$4,710 |
| 2026 | 17–18 | $4,560–$4,710 |
| 2025 | 17–18 | $4,560–$4,710 |
| 2014-2024 (Z62) Generation page | ||
| 2024 | 15–16 | $4,980–$5,360 |
| 2023 | 15–16 | $4,980–$5,360 |
| 2022 | 15–16 | $4,980–$5,360 |
| 2021 | 15–16 | $5,000–$5,360 |
| 2020 | 15–16 | $4,980–$5,240 |
| 2019 | 15–16 | $4,940–$5,360 |
| 2018 | 15–16 | $4,940–$5,360 |
| 2017 | 15–16 | $4,940–$5,360 |
| 2016 | 16 | $4,940–$5,140 |
| 2015 | 15–16 | $4,920–$5,280 |
| 2014 | 16 | $5,040–$5,090 |
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 QX80 generations
2 generations between 2014 and 2027. Open one for the table of every model year and configuration.
2027 powertrain options
More Infiniti models
Frequently asked questions
What is the Infiniti QX80's gas mileage by year?
EPA combined ratings for the Infiniti QX80 run 15–18 MPG across model years 2014 to 2027. The latest year, 2027, is rated 17–18 MPG.
Which Infiniti QX80 model year has the best gas mileage?
The 2027 Infiniti QX80 QX80 3.5L 6-cyl turbo RWD has the highest combined rating since 2014, at 18 MPG.
How much does a Infiniti QX80 cost to fuel per year?
For MY2027, EPA-rated configurations cost $4,550–$4,710 a year to fuel, driving 15,000 miles at premium gasoline $5.36/gal (U.S. average, Sep 2026). The most efficient one costs $4,550.
Has the Infiniti QX80's fuel economy improved over time?
Yes. The most efficient configuration moved from 16 MPG in 2014 to 18 MPG in 2027, 2 MPG more.
Which Infiniti QX80 model years have the same ratings?
EPA lists identical ratings as the previous year for 2019. The generation pages mark those years "same EPA ratings" and point to the year that holds the full table.
How many generations of the Infiniti QX80 are there?
EPA data covers 2 generations of the Infiniti QX80: 2025-2027*, 2014-2024. Each has its own page with a table for every model year.