The 2023 Jeep Grand Wagoneer 4WD has a combined fuel economy of 15 MPG with its 6.4L V8. It’s not designed to compete with fuel-efficient cars. It’s a body-on-frame vehicle that can haul a large family comfortably, tow heavy loads, and project an image of strong capability. Fuel economy is less important than these features, and buyers understand this trade-off. They are prioritizing presence and functionality, and expect to pay more for fuel.

City and highway performance

The EPA estimates are 13 MPG in the city and 18 MPG on the highway. The Grand Wagoneer’s weight and the 6.4L engine means city driving with frequent stops depletes fuel quickly. On the open road, the eight-speed automatic transmission helps by selecting the best gear for cruising, but the vehicle’s size limits efficiency. These figures are best-case scenarios; aggressive driving or difficult conditions, such as towing, will reduce fuel economy.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2023 Jeep Grand Wagoneer 4WD 6.4L at $3,850. This is based on 15,000 miles per year and the national average fuel price when calculated. This is an estimate. Your actual cost will vary if you drive more or less than 15,000 miles, or if fuel prices change. This high annual cost is a result of driving a large, powerful SUV with relatively poor fuel economy, and future owners should consider it.

Real-world expectations

The EPA provides a benchmark, but real-world fuel economy often varies. Grand Wagoneer drivers will likely see figures close to, or lower than, the official estimates, especially in mixed driving. Driving style, tire pressure, and terrain all have an impact. Those who tow regularly or drive in stop-and-go traffic will likely see the lowest fuel economy. Regular maintenance, including oil changes and air filter replacements, can help maintain fuel efficiency.

How it compares

The Grand Wagoneer’s fuel economy is predictably low compared to other large, luxury SUVs. The Cadillac Escalade, with its 6.2L V8, gets similar mileage. The Lincoln Navigator is slightly better, around 17 MPG combined in its 4×4 version. Even SUVs with smaller engines, such as the Land Rover Range Rover (which has a hybrid powertrain), often struggle to improve on the Grand Wagoneer’s mileage in real-world driving. There is an inherent trade-off between size, power, and fuel efficiency in this class. Resources are available online to compare GRAND MPG across all years.

Tips to maximize efficiency

Gentle acceleration is important. The Grand Wagoneer’s powerful engine responds to throttle input, but smooth acceleration conserves fuel. Anticipate traffic and maintain a steady speed, reducing braking and acceleration.

Tire pressure matters. Check your tires and maintain the recommended pressure on the doorjamb. Underinflated tires increase rolling resistance, making the engine work harder and using more fuel.

Reduce weight. Extra cargo strains the engine and reduces fuel economy. Remove unnecessary items. This task can add up.

Avoid idling. If you’re stopped for more than a minute or two, turn off the engine. Modern engines restart quickly, and idling wastes fuel. This is important if you need to warm up your vehicle.

Consider the available drive modes. The Grand Wagoneer has drive modes to optimize performance for different conditions. Experiment with these modes to see if any improve fuel efficiency while driving. Numerous online resources show all Jeep fuel economy data.