Infiniti QX55 MPG & Fuel Economy
The 2025 Infiniti QX55 gets up to 25 MPG combined (22 city / 28 highway) in EPA testing.
Latest model year (2025):
The Infiniti QX55 gets up to 25 MPG combined (22 city / 28 highway) in the Auto (AV-S8), 4 cyl, 2.0 L trim.
Infiniti QX55 MPG — All Years
| Year | Trim | Engine | Fuel | City (MPG) | Hwy (MPG) | Combined (MPG) |
|---|---|---|---|---|---|---|
| 2025 | Auto (AV-S8), 4 cyl, 2.0 L | 4 2.0L | Premium Gasoline | 22 | 28 | 25 |
| 2024 | Auto (AV-S8), 4 cyl, 2.0 L | 4 2.0L | Premium Gasoline | 22 | 28 | 25 |
| 2023 | Auto (AV-S8), 4 cyl, 2.0 L | 4 2.0L | Premium Gasoline | 22 | 28 | 25 |
| 2022 | Auto (AV-S8), 4 cyl, 2.0 L | 4 2.0L | Premium Gasoline | 22 | 28 | 25 |
Data sourced from fueleconomy.gov (U.S. Department of Energy). MPG figures are EPA-tested. Fuel costs are estimates based on average fuel prices and 15,000 miles/year.
Infiniti QX55 MPG FAQ
What is the MPG of the Infiniti QX55?
The Infiniti QX55 gets up to 25 MPG combined (22 city / 28 highway) in the 2025 model year. Fuel economy varies by engine and trim — see the full table above for details.
Which Infiniti QX55 trim has the best fuel economy?
The Auto (AV-S8), 4 cyl, 2.0 L trim offers the best combined fuel economy at 25 MPG. Smaller engines and front-wheel-drive configurations typically achieve the highest MPG.