24 MPG combined might raise eyebrows for compact sedans, but for the 2023 Jeep Gladiator Rubicon EcoDiesel, it’s a good number. This isn’t just for running errands. It’s designed for adventure, able to conquer trails and crawl over rocks. Its fuel economy isn’t trying to beat a Prius, but it offers a reasonable trade-off for people who want both rugged capability and acceptable fuel costs.

City and highway performance

The EPA estimates the Gladiator EcoDiesel will get 21 MPG in the city and 27 MPG on the highway. The city number reflects stop-and-go traffic and the engine working harder in urban areas. The 27 MPG highway rating shows the diesel engine’s efficiency at steady speeds, especially when the eight-speed automatic transmission shifts into its higher, fuel-saving gears. These numbers depend on your driving habits. An aggressive driver will see lower MPG, while a careful driver will likely see the EPA numbers.

Annual fuel cost

The EPA estimates an annual fuel cost of $2,300 for the 2023 Jeep Gladiator Rubicon EcoDiesel. This is based on driving 15,000 miles per year and using national average fuel prices. Your actual fuel costs will vary depending on your driving habits, type of driving, and local fuel prices. Someone who spends a lot of time off-roading or towing will probably spend more than this, while a driver with a shorter commute and more highway miles may spend less.

Real-world expectations

The official EPA figures provide a starting point, but real-world fuel economy for the Gladiator EcoDiesel often changes. Drivers who frequently engage the four-wheel-drive system, add aftermarket modifications (such as larger tires or a lift kit), or regularly tow will likely see lower MPG. However, drivers who prioritize fuel-efficient driving, keep proper tire inflation, and minimize weight can often get numbers that are close to, or even slightly better than, the EPA estimates. The EcoDiesel engine’s torque helps, since its strong low-end power means you don’t need to rev the engine hard, which can improve fuel economy.

How it compares

The Ford Ranger, especially with its 2.3L EcoBoost engine, is another option. While its fuel economy is typically one or two miles per gallon better, the Gladiator has a unique pickup truck/convertible design and a diesel engine. The Toyota Tacoma gets roughly 18 MPG combined. The Chevrolet Colorado ZR2 gets around 17 MPG combined with its V6 engine. The Gladiator’s EcoDiesel is relatively efficient, especially for buyers who prioritize torque and off-road capability. People buying a Jeep Gladiator are typically willing to sacrifice fuel economy to enjoy the vehicle’s performance.

Tips to maximize efficiency

Avoid accelerating and braking hard. The EcoDiesel’s strong torque delivery means you don’t need to push the engine hard to maintain speed. Accelerating gradually and watching traffic will greatly improve fuel economy.

Keep tires properly inflated. Underinflated tires increase rolling resistance, which reduces fuel efficiency. Check the sticker on the driver’s side doorjamb for the recommended tire pressure, and check your tires regularly, especially before long trips.

Minimize weight. Hauling extra cargo or towing heavy loads will decrease fuel economy. Remove unnecessary items from the truck bed and avoid towing unless necessary. For all Jeep fuel economy data, visit FuelEconomyHub.com.

Service your vehicle regularly. Following the manufacturer’s maintenance schedule, including oil changes, air filter replacements, and fuel filter replacements, will ensure your engine runs well and efficiently. Always use the correct grade of oil to maximize both fuel economy and engine operation.

Consider your driving conditions. Off-roading, stop-and-go traffic, and extreme weather can all hurt fuel consumption. Plan ahead, adjust your driving, and consider other routes when possible. If you would like to see the GLADIATOR MPG across all years, please visit FuelEconomyHub.com.