Against 247 other V6 cars rated 2024–2026, the Grand Wagoneer L trails their 21 mpg average by 2 mpg, about $192 a year.
Every Jeep Grand Wagoneer L engine, compared
The Jeep Grand Wagoneer L was rated in a single specification, so its gas mileage does not vary by version — only by model year. Yearly cost assumes 12,000 miles at $3.20 a gallon.
| Engine | Combined | City / Highway | Years | Fuel per year |
|---|---|---|---|---|
| 3L 6-cyl | 14.8 / 20.8 | 2023–2026 | $2,220 |
What that actually costs
Against its rivals in the same model years, the Cadillac Escalade gets 17 mpg, the Land Rover Defender 18.3 mpg and the Lexus TX 25.5 mpg, next to 19 mpg for the 2026 Grand Wagoneer L.
| Measure | Value |
|---|---|
| Cost per mile (2026) | $0.168 |
| Fuel per year | $2,021 |
| Fuel over five years | $10,105 |
| Against other V6 cars, 2024–2026 | +$192 a year |
| EPA's own estimate | $4,300 a year |
City or highway — who is this car for
The 2026 Jeep Grand Wagoneer L gives up 7 mpg in town: 24 on the highway against 17 in the city, $659 a year if every mile were city driving.
| Measure | Value | Reading |
|---|---|---|
| City (2026) | 17 mpg | $2,259 a year if you only drive in town |
| Highway | 24 mpg | $1,600 a year if you mostly commute |
| Gap | +7 mpg (41%) | Wide — this car dislikes traffic |
How the Grand Wagoneer L changed over the years
The Grand Wagoneer L peaked in 2026 at 19 mpg (17 city, 24 highway) and was at its thirstiest in 2023 at 16 — 3 mpg apart, or $379 a year in fuel between buying one year and the other. The 2026 model gains 2 mpg against 17 for the 2025.
| Model year | Combined | City / Highway | Engines offered | Fuel per year |
|---|---|---|---|---|
| 2026 | 17 / 24 | 1 | $2,021 | |
| 2025 | 14 / 20 | 1 | $2,259 | |
| 2024 | 14 / 20 | 1 | $2,259 | |
| 2023 | 14 / 19 | 1 | $2,400 |
MPG is a number. Dollars per year is the answer.
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How we count
This page rests on 4 EPA ratings of the Jeep Grand Wagoneer L — 1 engine across 2023–2026. 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 $4,300. Full method.
Frequently asked questions
What mpg does the 2026 Jeep Grand Wagoneer L get?
19 mpg combined, 17 city and 24 highway, per EPA. Across every year since 2023 the Grand Wagoneer L has averaged 17.3 mpg.
Is the 2026 Grand Wagoneer L more efficient than the 2025?
Yes: 19 against 17 mpg combined, about $238 a year less to run.
Which Grand Wagoneer L year has the best gas mileage?
The 2026, at 19 mpg combined (17 city, 24 highway), which is also the latest model year we hold.
Does the Grand Wagoneer L get better gas mileage than the Cadillac Escalade?
Yes: 19 mpg for the 2026 Grand Wagoneer L against 17 for the 2026 Cadillac Escalade, about $238 a year less to run.
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