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Jeep Grand Wagoneer Fuel Economy (MPG)

What is the real-world gas mileage of a 2026 Jeep Grand Wagoneer?

The 2026 Jeep Grand Wagoneer gets up to 19 MPG combined (17 city / 24 highway) in EPA testing.

Latest model year (2026):

The Jeep Grand Wagoneer gets up to 19 MPG combined (17 city / 24 highway) in the Auto 8-spd, 6 cyl, 3.0 L trim.

Verifiedfueleconomy.gov · Verified August 11, 2026
OverviewMPGEngine SpecsFuel CostTransmissionDrivetrainVehicle ClassMaintenanceDimensionsCurb Weight

Jeep Grand Wagoneer MPG — All Years

YearTrimEngineFuelCity (MPG)Hwy (MPG)Combined (MPG)
2026Config 1 of 3Auto 8-spd, 6 cyl, 3.0 L6 3.0LRegular Gasoline172419
2026Config 2 of 3Auto 8-spd, 6 cyl, 3.0 L6 3.0LRegular Gasoline172319
2026Config 3 of 3Auto 8-spd, 6 cyl, 3.0 L6 3.0LRegular Gasoline162218
2025Auto 8-spd, 6 cyl, 3.0 L6 3.0LPremium Gasoline142017
2024Config 1 of 2Auto 8-spd, 6 cyl, 3.0 L6 3.0LPremium Gasoline142017
2024Config 2 of 2Auto 8-spd, 8 cyl, 6.4 L8 6.4LPremium Gasoline131815
2023Config 1 of 3Auto 8-spd, 6 cyl, 3.0 L6 3.0LPremium Gasoline142017
2023Config 2 of 3Auto 8-spd, 6 cyl, 3.0 L6 3.0LPremium Gasoline141916
2023Config 3 of 3Auto 8-spd, 8 cyl, 6.4 L8 6.4LPremium Gasoline131815
2022Config 1 of 4Auto 8-spd, 6 cyl, 3.0 L6 3.0LPremium Gasoline152117
2022Config 2 of 4Auto 8-spd, 6 cyl, 3.0 L6 3.0LPremium Gasoline142017
2022Config 3 of 4Auto 8-spd, 8 cyl, 6.4 L8 6.4LPremium Gasoline131915
2022Config 4 of 4Auto 8-spd, 8 cyl, 6.4 L8 6.4LPremium Gasoline131815

Data sourced from fueleconomy.gov (U.S. Department of Energy). MPG figures are EPA-tested. Fuel costs are estimates based on average fuel prices and 15,000 miles/year.

Jeep Grand Wagoneer data analysis

How Jeep Grand Wagoneer combined fuel economy varies

Across 13 configurations recorded for the 2022 through 2026 Jeep Grand Wagoneer, combined fuel economy runs from 15 MPG to 19 MPG. The strongest figure belongs to the 2026 Jeep Grand Wagoneer (Auto 8-spd, 6 cyl, 3.0 L) at 19 MPG, and the weakest to the 2024 car (Auto 8-spd, 8 cyl, 6.4 L) at 15 MPG — a spread of 27%. A gap that wide means the model year and configuration you buy matter more than the nameplate does: quoting a single number for the Jeep Grand Wagoneer would be misleading.

What changed for 2026

Average combined fuel economy for the 2026 Jeep Grand Wagoneer is 18.7 MPG, against 17 MPG for the 2025 car — it rose by 1.7 MPG. That is a real improvement, and it is the kind of change worth paying the newer-year premium for if this figure drives your decision.

How to read this Jeep Grand Wagoneer data

This page lists every 2022 through 2026 Jeep Grand Wagoneer record we hold for this measurement — 13 rows in total, one per configuration and model year rather than a single headline figure. Figures are published as the source agency records them: we do not round, average or interpolate missing years, and a year that is absent from the table is a year with no published measurement rather than a zero. Where a manufacturer offered several drivetrains or body styles in the same year, each appears on its own row, because those variants rarely share the same numbers.

Configurations behind these Jeep Grand Wagoneer numbers

The 2022 through 2026 Jeep Grand Wagoneer entries here cover the variants Auto 8-spd, 6 cyl, 3.0 L and Auto 8-spd, 8 cyl, 6.4 L. 2022 is the busiest model year in the record with 4 separate measured configurations, which is why a single quoted combined fuel economy figure for that year is rarely the one that matches the car in front of you. Match the row to the exact drivetrain, body style and engine on the window sticker or VIN before relying on the number, and use the comparison links below to see how those same configurations line up against rival models.

Where these Jeep Grand Wagoneer figures come from

Every value on this page is loaded from federal open data — EPA fuel economy submissions, NHTSA vehicle and crash-test records, and manufacturer specification filings — rather than dealer listings or copied editorial content. The Jeep Grand Wagoneer record refreshes as the agencies publish, which typically means new model-year rows appear in the autumn and crash-test results follow through the model year as vehicles are tested. Because certification data is filed per configuration, treat any single headline number for this vehicle with caution: the figure that applies to a specific car depends on its engine, drivetrain, body style and model year, all of which are listed separately above. If a number here disagrees with a brochure, the brochure is usually quoting the best available configuration rather than the one being sold.

Official Factory Specs vs. AutoSpecData Expert Benchmarks

The EPA highway loop never holds interstate speed. Here is what the same engine does when you sit on the cruise control.

Cruise speedEPA highway specAutoSpecData adjusted MPGFuel you lose
60 mph24 MPG24 MPG0%
65 mph24 MPG21.9 MPG9%
70 mph24 MPG20 MPG17%
75 mph24 MPG18.3 MPG24%
80 mph24 MPG16.8 MPG30%

Our Real-World Speed MPG Adjuster re-scales the Jeep Grand Wagoneer EPA highway result with a quadratic drag term (mpg = hwy ÷ (1 + k·(v² − 60²)/60²), k = 0.55 for trucks, SUVs and vans, 0.42 for cars). Wind, roof racks, and a heavy right foot make it worse, never better.

Frequently Asked Questions About Grand Wagoneer MPG

What is the MPG of the Jeep Grand Wagoneer?

The Jeep Grand Wagoneer gets up to 19 MPG combined (17 city / 24 highway) in the 2026 model year. Fuel economy varies by engine and trim — see the full table above for details.

Which Jeep Grand Wagoneer trim has the best fuel economy?

The Auto 8-spd, 6 cyl, 3.0 L trim offers the best combined fuel economy at 19 MPG. Smaller engines and front-wheel-drive configurations typically achieve the highest MPG.

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