Against 381 other 4-cyl cars rated 2024–2026, the G70 trails their 26.3 mpg average by 4.3 mpg, about $285 a year. Averaged over the years each was sold, the most economical engine since 2019, the 2L 4-cyl (2019–2023), does 24.8 mpg and the thirstiest, the 3.3L 6-cyl (2019–2026), 20.3: $344 a year apart.
Every Genesis G70 engine, compared
Yearly cost assumes 12,000 miles at $3.20 a gallon.
| Engine | Combined | City / Highway | Years | Fuel per year |
|---|---|---|---|---|
| 2L 4-cyl | 21.6 / 30.4 | 2019–2023 | $1,548 | |
| 2.5L 4-cyl | 21 / 29 | 2024–2026 | $1,600 | |
| 3.3L 6-cyl | 17.3 / 25.6 | 2019–2026 | $1,892 |
What that actually costs
Against its rivals in the same model years, the Lexus IS gets 22.5 mpg, the BMW M3 19 mpg and the Acura TLX 23 mpg, next to 22 mpg for the 2026 G70.
| Measure | Value |
|---|---|
| Cost per mile (2026) | $0.145 |
| Fuel per year | $1,745 |
| Fuel over five years | $8,725 |
| Against other 4-cyl cars, 2024–2026 | +$285 a year |
| EPA's own estimate | $3,450 a year |
City or highway — who is this car for
The 2026 Genesis G70 gives up 8 mpg in town: 27 on the highway against 19 in the city, $599 a year if every mile were city driving.
| Measure | Value | Reading |
|---|---|---|
| City (2026) | 19 mpg | $2,021 a year if you only drive in town |
| Highway | 27 mpg | $1,422 a year if you mostly commute |
| Gap | +8 mpg (42%) | Wide — this car dislikes traffic |
How the G70 changed over the years
The G70 peaked in 2024 at 24 mpg (21 city, 29 highway) and was at its thirstiest in 2026 at 22 — 2 mpg apart, or $145 a year in fuel between buying one year and the other. The 2026 car does 22.
| Model year | Combined | City / Highway | Engines offered | Fuel per year |
|---|---|---|---|---|
| 2026 | 19 / 27 | 2 | $1,745 | |
| 2025 | 19 / 27 | 2 | $1,745 | |
| 2024 | 21 / 29 | 1 | $1,600 | |
| 2023 | 19.5 / 29 | 2 | $1,670 | |
| 2022 | 19.5 / 29 | 2 | $1,707 | |
| 2021 | 19.5 / 27.5 | 2 | $1,707 | |
| 2020 | 19.5 / 27.5 | 2 | $1,707 | |
| 2019 | 19.5 / 27.5 | 2 | $1,707 |
MPG is a number. Dollars per year is the answer.
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How we count
This page rests on 15 EPA ratings of the Genesis G70 — 3 engines across 2019–2026. 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 $3,450. Full method.
Frequently asked questions
What mpg does the 2026 Genesis G70 get?
22 mpg combined, 19 city and 27 highway, per EPA; its 2 versions that year range from 20 to 24. Across every year since 2019 the G70 has averaged 22.5 mpg.
Is the 2026 G70 more efficient than the 2025?
About the same: 22 against 22 mpg combined.
Which G70 year has the best gas mileage?
The 2024, at 24 mpg combined (21 city, 29 highway).
Does the G70 get better gas mileage than the Lexus IS?
About the same: 22 mpg for the 2026 G70 against 22.5 for the 2026 Lexus IS.
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