The Jeep Grand Wagoneer L does 17.3 mpg combined (14.8 city, 20.8 highway), which works out to about $2,220 a year in fuel at $3.20 a gallon and 12,000 miles. Against other V6 cars it sits below the average of 19.9 mpg.
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
The Jeep Grand Wagoneer L burns a gallon every 17.3 miles, so 12,000 miles takes about 694 gallons a year. At $3.20 that is what the table below adds up to.
| Measure | Value |
|---|---|
| Cost per mile | $0.185 |
| Fuel per year | $2,220 |
| Fuel over five years | $11,100 |
| Against other V6 cars | +$290 a year |
| EPA's own estimate | $4,300 a year |
City or highway — who is this car for
The Jeep Grand Wagoneer L gives up 6 mpg the moment you leave the motorway — 20.8 out there against 14.8 in town, a 41% drop worth $749 a year. A wide gap punishes stop-and-start traffic; a narrow one means the car doesn't care where you drive it.
| Measure | Value | Reading |
|---|---|---|
| City | 14.8 mpg | $2,595 a year if you only drive in town |
| Highway | 20.8 mpg | $1,846 a year if you mostly commute |
| Gap | +6 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 car does 19. Jumps usually mark a new generation or a new engine; dips often mean a heavier body or added all-wheel drive.
| 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 Jeep Grand Wagoneer L get?
17.3 mpg combined on average — 14.8 in the city and 20.8 on the highway, per EPA ratings across 2023–2026.
How much does a Jeep Grand Wagoneer L cost in fuel per year?
About $2,220 at 12,000 miles and $3.20 a gallon — roughly $11,100 over five years, or 0.185 dollars a mile.
Which Grand Wagoneer L engine is the most economical?
The 3L 6-cyl at 17.3 mpg.
Is the Grand Wagoneer L good on fuel compared with similar cars?
Against other V6 cars it sits below the average of 19.9 mpg, computed across 4940 ratings.
Are these real-world Grand Wagoneer L figures?
No — they are EPA laboratory ratings, the same ones printed on the window sticker, and EPA's own annual fuel estimate for the Jeep Grand Wagoneer L is $4,300 against the $2,220 we compute at 12,000 miles. Expect a little worse in practice: the spread between the city and highway figures is smaller than the spread between two drivers of the same one.
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