Against 247 other V6 cars rated 2024–2026, the Grand Cherokee L beats their 21 mpg average by 1 mpg, about $84 a year. Averaged over the years each was sold, the most economical engine since 2021, the 2L 4-cyl (2026), does 23 mpg and the thirstiest, the 5.7L 8-cyl (2021–2024), 17: $589 a year apart.
Every Jeep Grand Cherokee L 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 / 26 | 2026–2026 | $1,670 | |
| 3.6L 6-cyl | 19 / 26 | 2021–2026 | $1,829 | |
| 5.7L 8-cyl | 14 / 22 | 2021–2024 | $2,259 |
What that actually costs
Against its rivals in the same model years, the Lexus GX gets 17 mpg, the Cadillac Escalade 17 mpg and the Hyundai Palisade 27.8 mpg, next to 22 mpg for the 2026 Grand Cherokee L.
| Measure | Value |
|---|---|
| Cost per mile (2026) | $0.145 |
| Fuel per year | $1,745 |
| Fuel over five years | $8,725 |
| Against other V6 cars, 2024–2026 | −$84 a year |
| EPA's own estimate | $3,382 a year |
City or highway — who is this car for
The 2026 Jeep Grand Cherokee L gives up 6 mpg in town: 26 on the highway against 20 in the city, $443 a year if every mile were city driving.
| Measure | Value | Reading |
|---|---|---|
| City (2026) | 20 mpg | $1,920 a year if you only drive in town |
| Highway | 26 mpg | $1,477 a year if you mostly commute |
| Gap | +6 mpg (30%) | Wide — this car dislikes traffic |
How the Grand Cherokee L changed over the years
The Grand Cherokee L peaked in 2026 at 22 mpg (20 city, 26 highway) and was at its thirstiest in 2024 at 19 — 3 mpg apart, or $276 a year in fuel between buying one year and the other.
| Model year | Combined | City / Highway | Engines offered | Fuel per year |
|---|---|---|---|---|
| 2026 | 20 / 26 | 2 | $1,745 | |
| 2025 | 19 / 26 | 1 | $1,829 | |
| 2024 | 16.5 / 24 | 2 | $2,021 | |
| 2023 | 16.5 / 24 | 2 | $2,021 | |
| 2022 | 16.5 / 24 | 2 | $2,021 | |
| 2021 | 16.5 / 24 | 2 | $2,021 |
MPG is a number. Dollars per year is the answer.
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How we count
This page rests on 11 EPA ratings of the Jeep Grand Cherokee L — 3 engines across 2021–2026. 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 $3,382. Full method.
Frequently asked questions
What mpg does the 2026 Jeep Grand Cherokee L get?
22 mpg combined, 20 city and 26 highway, per EPA; its 2 versions that year range from 21 to 23. Across every year since 2021 the Grand Cherokee L has averaged 19.7 mpg.
Is the 2026 Grand Cherokee L more efficient than the 2025?
Yes: 22 against 21 mpg combined, about $84 a year less to run.
Which Grand Cherokee L year has the best gas mileage?
The 2026, at 22 mpg combined (20 city, 26 highway), which is also the latest model year we hold.
Does the Grand Cherokee L get better gas mileage than the Lexus GX?
Yes: 22 mpg for the 2026 Grand Cherokee L against 17 for the 2026 Lexus GX, about $514 a year less to run.
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