The Jeep Gladiator stands out as a tough midsize truck, designed for both adventure and daily use. If you’re thinking about buying one, or already own it, you probably wonder about its fuel tank size.
Knowing how many gallons it holds is important for planning trips, estimating fuel costs, and understanding its range. This article breaks down everything you need to know about the Jeep Gladiator’s gas tank, including comparisons, practical advice, and answers to common questions.
Jeep Gladiator Fuel Tank Capacity
Most Jeep Gladiator models come with a 22-gallon fuel tank. This size is standard across different trims, including Sport, Overland, Rubicon, and Mojave. There are no larger or smaller tanks offered from the factory for this truck.
For example, if you fill up from empty, you’ll need about 22 gallons of gasoline. This is consistent with Jeep’s official specs and what drivers report after refueling.
Why Fuel Tank Size Matters
The size of the fuel tank affects:
- Driving range: Bigger tanks let you drive farther between stops.
- Fueling frequency: Smaller tanks mean more trips to the gas station.
- Weight: More fuel adds weight, which can change handling slightly.
If you plan off-road adventures or long road trips, knowing your tank’s capacity helps you calculate how far you can go without needing to refuel.
Jeep Gladiator Vs Other Trucks
How does the Gladiator’s fuel tank compare to similar trucks? See the table below:
| Truck Model | Fuel Tank Size (Gallons) | Estimated Range (Miles) |
|---|---|---|
| Jeep Gladiator | 22 | 330–440 |
| Toyota Tacoma | 21.1 | 340–420 |
| Ford Ranger | 18 | 320–380 |
| Chevy Colorado | 21 | 330–410 |
The Gladiator’s tank is slightly larger than most midsize competitors, so you get a bit more range on a full tank.
Real-world Driving Range
The actual driving range depends on how you drive, road conditions, and your Gladiator’s engine. Most Gladiators have a 3.6L V6 engine, and the EPA rates them at about 17 mpg city and 22 mpg highway.
Here’s a quick calculation:
- City Driving: 22 gallons × 17 mpg = 374 miles
- Highway Driving: 22 gallons × 22 mpg = 484 miles
But in real life, you might get less, especially if you drive fast, tow, or go off-road. Many owners report a range between 330–440 miles per tank in mixed driving.
Trim Level Differences
There’s sometimes confusion about whether different Gladiator trims have different tank sizes. Here’s a breakdown:
| Gladiator Trim | Fuel Tank Capacity (Gallons) | Engine Type |
|---|---|---|
| Sport | 22 | 3.6L V6 |
| Overland | 22 | 3.6L V6 |
| Rubicon | 22 | 3.6L V6 |
| Mojave | 22 | 3.6L V6 |
All trims share the same tank size, so range and refueling frequency are very similar.
Practical Tips For Gladiator Owners
- Plan your trips: Always check your fuel level before a long drive, especially if you’re heading to remote areas.
- Watch for low fuel: The Gladiator’s warning light comes on with about 2–3 gallons left. Don’t risk running out.
- Know your mpg: Track your miles per gallon for real-world numbers. This helps you plan better.
- Avoid overfilling: Stop when the pump clicks off. Overfilling can damage the vapor system.
- Consider extra fuel: For off-road or camping, carrying a fuel can is smart. Always secure it safely.
How To Find Your Gladiator’s Fuel Tank Size
If you’re unsure about your Gladiator’s tank, check:
- Owner’s manual
- Sticker inside the fuel door
- Official Jeep website (Jeep Gladiator Official Site)
You can also ask your dealer. Most Gladiator models since launch (2019-present) have the same 22-gallon tank.
Non-obvious Insights
Many new Gladiator owners miss these points:
- The 22-gallon tank feels smaller during heavy off-road use. You’ll burn more fuel when climbing hills, rock crawling, or driving in sand.
- Cold weather can lower your mpg, so your range drops, even with a full tank.
If you’re adding heavy accessories (like roof racks, winches, or bigger tires), your truck will use more fuel, shortening your range.
Modifying Your Gladiator’s Fuel System
Some adventurous owners want bigger tanks for more range. There are aftermarket options, but:
- They often require professional installation
- Can reduce cargo space
- May void your warranty
Unless you’re a serious overlander, the factory tank is usually enough.
Frequently Asked Questions
How Many Gallons Does The Jeep Gladiator Tank Hold?
The Gladiator holds 22 gallons of fuel in its standard tank. This applies to all current trims and model years.
Can I Upgrade My Gladiator To A Larger Fuel Tank?
Yes, aftermarket kits exist, but they are expensive, require skilled installation, and may affect warranty coverage. For most drivers, the stock tank is enough.
How Far Can I Drive On A Full Tank?
With typical mpg, you’ll drive 330–440 miles per tank. Range varies based on your driving style, road conditions, and load.
Does The Gladiator Diesel Have A Different Tank Size?
The Gladiator diesel model (when available) still uses a 22-gallon tank, but its mpg is higher. This gives you more range per fill-up.
How Do I Check My Fuel Tank Size?
Look in your owner’s manual, check the sticker inside the fuel door, or visit the official Jeep Gladiator site. Your dealer can also confirm the size.
The Jeep Gladiator is built for adventure, and its fuel tank size supports both daily and off-road driving. Understanding how many gallons it holds helps you plan smarter, avoid surprises, and make the most of your truck. Whether you’re commuting or exploring, knowing these details keeps you ready for the road ahead.
