Against 308 other V6 cars rated 2022–2024, the Q50 beats their 21.3 mpg average by 1.7 mpg, about $133 a year. Averaged over the years each was sold, the most economical engine since 2014, the 3.5L 6-cyl Hybrid (2014–2018), does 30 mpg and the thirstiest, the 3L 6-cyl (2016–2024), 23: $390 a year apart.
Every Infiniti Q50 engine, compared
Yearly cost assumes 12,000 miles at $3.20 a gallon.
| Engine | Combined | City / Highway | Years | Fuel per year |
|---|---|---|---|---|
| 3.5L 6-cyl Hybrid | 28 / 33.8 | 2014–2018 | $1,280 | |
| 2L 4-cyl | 23 / 30.5 | 2016–2019 | $1,506 | |
| 3.7L 6-cyl | 20 / 29 | 2014–2015 | $1,670 | |
| 3L 6-cyl | 19.9 / 28.9 | 2016–2024 | $1,670 |
What that actually costs
Against its rivals in the same model years, the Toyota Camry gets 38.7 mpg, the Honda Accord 40 mpg and the Toyota Prius 55.8 mpg, next to 23 mpg for the 2024 Q50. The Q50 costs the most of them to run: $982 a year more than the Toyota Prius.
| Measure | Value |
|---|---|
| Cost per mile (2024) | $0.139 |
| Fuel per year | $1,670 |
| Fuel over five years | $8,350 |
| Against other V6 cars, 2022–2024 | −$133 a year |
| EPA's own estimate | $3,090 a year |
City or highway — who is this car for
The 2024 Infiniti Q50 gives up 9 mpg in town: 29 on the highway against 20 in the city, $596 a year if every mile were city driving.
| Measure | Value | Reading |
|---|---|---|
| City (2024) | 20 mpg | $1,920 a year if you only drive in town |
| Highway | 29 mpg | $1,324 a year if you mostly commute |
| Gap | +9 mpg (45%) | Wide — this car dislikes traffic |
How the Q50 changed over the years
The Q50 peaked in 2015 at 27 mpg (24.5 city, 32.5 highway) and was at its thirstiest in 2024 at 23 — 4 mpg apart, or $248 a year in fuel between buying one year and the other. The 2024 car does 23.
| Model year | Combined | City / Highway | Engines offered | Fuel per year |
|---|---|---|---|---|
| 2024 | 20 / 29 | 1 | $1,670 | |
| 2023 | 20 / 29 | 1 | $1,670 | |
| 2022 | 20 / 29 | 1 | $1,670 | |
| 2021 | 20 / 29 | 1 | $1,670 | |
| 2020 | 20 / 29 | 1 | $1,670 | |
| 2019 | 21.5 / 29.5 | 2 | $1,600 | |
| 2018 | 23.3 / 30.3 | 3 | $1,494 | |
| 2017 | 23.3 / 30.7 | 3 | $1,477 | |
| 2016 | 23.3 / 30.7 | 3 | $1,460 | |
| 2015 | 24.5 / 32.5 | 2 | $1,422 | |
| 2014 | 24.5 / 32.5 | 2 | $1,422 |
MPG is a number. Dollars per year is the answer.
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How we count
This page rests on 20 EPA ratings of the Infiniti Q50 — 4 engines across 2014–2024. The mileage is EPA's laboratory figure, unchanged; the yearly bill is ours, at 12,000 miles and $3.20 a gallon, against EPA's own estimate of $3,090. Full method.
Frequently asked questions
What mpg does the 2024 Infiniti Q50 get?
23 mpg combined, 20 city and 29 highway, per EPA. Across every year since 2014 the Q50 has averaged 25.3 mpg.
Is the 2024 Q50 more efficient than the 2023?
About the same: 23 against 23 mpg combined.
Which Q50 year has the best gas mileage?
The 2015, at 27 mpg combined (24.5 city, 32.5 highway).
Does the Q50 get better gas mileage than the Toyota Camry?
No: 23 mpg for the 2024 Q50 against 38.7 for the 2025 Toyota Camry, about $678 a year more to run.
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