17 MPG combined won’t win any awards for lower fuel costs, but it’s what you can expect for the 2024 Jeep Grand Wagoneer L 4WD with its 3.0L six-cylinder engine. This isn’t a vehicle purchased for sipping fuel; it’s bought for hauling a large family and their gear in luxury, with the added security of four-wheel drive, and the elongated “L” body style for maximum cargo capacity. The Grand Wagoneer L buyer wants space, presence, and capability more than thriftiness at the pump.

City and highway performance

The EPA estimates 14 MPG in the city. Stop-and-go traffic, the Grand Wagoneer L’s weight, and the engine’s need to work harder during acceleration all contribute to this lower figure. On the open road, the Grand Wagoneer L achieves an EPA estimated 20 MPG on the highway. The eight-speed automatic transmission helps keep the engine in its most efficient range at cruising speeds, but even then, aerodynamic drag and rolling resistance take their toll.

Annual fuel cost

The EPA calculates the annual fuel cost for the 2024 Jeep Grand Wagoneer L 4WD at $3,400. This figure is based on driving 15,000 miles per year, with a specified percentage of city versus highway miles, and using the national average fuel price. Keep in mind that fuel prices fluctuate, and your actual mileage may vary based on driving style and conditions. If you frequently drive in stop-and-go traffic or have a heavy foot, you’ll likely exceed that $3,400 figure. If you want to explore GRAND MPG across all years, we have data available.

Real-world expectations

Don’t be surprised if you see numbers slightly lower than the EPA estimates. Real-world driving often involves heavier loads, more aggressive acceleration, and less-than-ideal weather conditions that can impact fuel consumption. Towing, even occasionally, will dramatically decrease your MPG. Consistent monitoring of your fuel economy using the vehicle’s trip computer can provide valuable insights into your driving habits and their effect on efficiency.

How it compares

The Grand Wagoneer L exists in a segment of large, luxury SUVs where fuel economy isn’t the main concern, but comparisons are inevitable. The Cadillac Escalade ESV 4WD, with its 6.2L V8, achieves a similar 16 MPG combined. The Lincoln Navigator L 4×4, equipped with a 3.5L twin-turbo V6, also hovers around the same mark, at 17 MPG combined. Even the Infiniti QX80 4WD with its 5.6L V8 posts similar numbers as well. These vehicles are direct competitors and cater to the same demographic. The MPG differences are often overshadowed by factors such as styling, features, and brand preference.

Tips to maximize efficiency

While the Grand Wagoneer L isn’t designed to use very little fuel, there are still ways to improve your MPG. Avoid aggressive acceleration and anticipate traffic flow to minimize hard braking. The turbocharged engine responds well to smooth inputs.

Ensure your tires are properly inflated. Underinflated tires increase rolling resistance, forcing the engine to work harder and consuming more fuel.

Regular maintenance, including oil changes and air filter replacements, will help the engine run efficiently.

Reduce unnecessary weight. Removing cargo that isn’t needed will lighten the load and improve fuel economy slightly. While space is a key selling point, try to carry only what you need for each journey.

Consider using “Eco” or “Auto” driving modes if equipped. These modes typically adjust throttle response and transmission shift points to prioritize fuel efficiency over performance. While the difference may be subtle, consistent use can contribute to marginal MPG gains. Consider browsing all Jeep fuel economy data for more information.