The 2023 Jeep Gladiator 4WD with the 3.6L V6 engine has an EPA-estimated fuel economy of 19 MPG combined. Fuel efficiency isn’t the primary reason for buying a Gladiator. It’s a midsize pickup truck that’s strong off-road, has a removable top and doors, and a generally tough character. Owners value its unique combination of utility and open-air driving, and they accept lower gas mileage for that experience.

City and highway performance

The EPA further estimates the Gladiator’s fuel economy at 17 MPG in the city and 22 MPG on the highway. The city MPG reflects the Gladiator’s weight and less aerodynamic design, with performance suffering especially in stop-and-go conditions. Highway driving is better, but even then, the Gladiator’s off-road tires and upright windshield create wind resistance and raise fuel consumption. The automatic 8-speed transmission helps keep the engine in its optimal range, but it’s still working against physics.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2023 Jeep Gladiator 4WD 3.6L V6 at $2,300. This is based on driving 15,000 miles per year and using national average fuel prices. Your actual fuel costs will vary based on your driving habits and local gas prices. Consider your typical commute, weekend trips, and how often you tow or haul cargo, as all of these impact fuel costs. Think of this $2,300 as a starting point.

Real-world expectations

While the EPA estimates provide a baseline, the Gladiator’s real-world fuel economy can differ significantly. Owners who frequently go off-roading, install larger aftermarket tires, or add weight through modifications will likely see lower MPG. Aggressive driving, towing, and even driving with the top down can hurt fuel efficiency. Conversely, those who primarily commute on relatively flat roads and drive efficiently may get closer to, or even slightly exceed, the EPA estimates.

How it compares

The Gladiator’s fuel economy is near the bottom compared to other midsize trucks. A 2023 Ford Ranger 4×4 with the 2.3L EcoBoost engine gets an EPA-estimated 20 MPG combined. The Toyota Tacoma 4×4 with its 3.5L V6 gets about 19 MPG combined, similar to the Gladiator. The Chevrolet Colorado 4×4 with the base 2.7L turbo engine is a more efficient option, offering around 20 MPG combined. These differences may seem small initially, but they add up. However, those vehicles lack the Gladiator’s open-air experience, confirming that buyers value other factors over maximum fuel savings. You can find all Jeep fuel economy data right here.

Tips to maximize efficiency

While the Gladiator will never be a fuel-efficient vehicle, you can take steps to improve its MPG. One option is to drive conservatively. Avoid rapid acceleration and hard braking, maintaining a steady speed when possible. Even a slightly smoother driving style can noticeably raise your MPG, especially in cities.

Make sure your Gladiator’s tires are properly inflated. Check your tire pressure often and keep it at the recommended PSI on the door jamb sticker. Underinflated tires increase rolling resistance, which makes the engine work harder and lowers fuel economy. Consider the tire type; aggressive off-road tires look great but often have higher rolling resistance than all-season options. Choose tires that balance your on and off-road driving.

Reduce extra weight. Remove any unnecessary cargo from the bed or cabin. Any extra weight impacts the engine, decreasing fuel economy. Decide if you really need to carry all that gear. The less the engine works, the better your MPG.

Follow the regular maintenance schedule. A well-maintained engine runs better. Follow the manufacturer’s recommended service schedule, including oil changes, air filter replacements, and spark plug maintenance. Routine services help ensure the engine runs optimally, getting maximum mileage.

Consider your driving conditions. You might try alternative routes or adjust your driving schedule if you frequently encounter stop-and-go traffic to avoid congestion. Try to consolidate trips because cold starts use more fuel with required oil.

Before purchasing, check GLADIATOR MPG across all years.