Jeep Gladiator Fuel Tank Capacity
How big is the gas tank on a 2027 Jeep Gladiator?
The 2027 Jeep Gladiator has a 22-gallon fuel tank, good for roughly 418 miles of range at 19 MPG combined.
Latest model year (2027):
The Jeep Gladiator holds 22 gallons of fuel. At 19 MPG combined that is roughly 418 miles of range on a full tank.
Jeep Gladiator Gas Tank — All Years
| Year | Tank Capacity | Optional Tank | Combined MPG | Est. Range |
|---|---|---|---|---|
| 2027 | 22 gal | — | 19 | 418 mi |
| 2026 | 22 gal | — | 19 | 418 mi |
| 2025 | 22 gal | — | 19 | 418 mi |
| 2024 | 22 gal | — | 19 | 418 mi |
| 2023 | 22 gal | — | 22 | 484 mi |
| 2022 | 22 gal | — | 22 | 484 mi |
| 2021 | 22 gal | — | 22 | 484 mi |
Manufacturer specification data sourced from Manufacturer specifications, last verified August 12, 2026. Always confirm against the owner's manual or door-jamb placard before towing or buying tires — figures vary by cab, bed, axle ratio, and options.
Jeep Gladiator data analysis
How Jeep Gladiator fuel tank capacity varies
Across 7 configurations recorded for the 2021 through 2027 Jeep Gladiator, fuel tank capacity runs from 22 gallons to 22 gallons. The strongest figure belongs to the 2021 Jeep Gladiator (Standard) at 22 gallons, and the weakest to the 2027 car (Standard) at 22 gallons — a spread of 0%. The narrow spread means any year of the Jeep Gladiator in this table behaves much like the others, so you can shop on price, condition and mileage rather than chasing a particular model year.
What changed for 2027
Average fuel tank capacity for the 2027 Jeep Gladiator is 22 gallons, against 22 gallons for the 2026 car — it held flat. A carry-over year like this usually means no powertrain or structural change, so an older example is the cheaper way into the same specification.
How to read this Jeep Gladiator data
This page lists every 2021 through 2027 Jeep Gladiator record we hold for this measurement — 7 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.
Where these Jeep Gladiator 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 Gladiator 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.
Frequently Asked Questions About Gladiator Gas Tank
How big is the Jeep Gladiator gas tank?
The Jeep Gladiator has a 22-gallon fuel tank. Capacity changed between generations — the table above lists it year by year.
How far can the Jeep Gladiator go on a full tank?
At roughly 20 MPG combined, a full 22-gallon tank is good for about 440 miles. Plan on refueling near 300 miles, since most fuel gauges read empty with 1–2 gallons still in the tank.
How much does it cost to fill up a Jeep Gladiator?
At $3.50 per gallon, filling the 22-gallon tank from empty costs about $77. Multiply the tank size by your local pump price for a current figure.