21 MPG combined is the reality for the 2024 Jeep Grand Cherokee L 4WD with the 3.6L V6. This isn’t a Prius, and it’s not pretending to be. It’s a three-row Jeep, which means off-road capability, substantial towing capacity, and enough interior volume to haul kids, dogs, and all their gear are higher priorities than squeezing every last mile from a gallon of gasoline.

City and highway performance

The EPA estimates the Grand Cherokee L 4WD V6 at 18 MPG in the city and 25 MPG on the highway. The city figure reflects the stop-and-go driving that plagues many families, while the highway number acknowledges the Grand Cherokee L’s comfortable cruising ability. This spread between city and highway suggests the eight-speed automatic transmission is doing its job, keeping the engine in its most efficient range when possible. But let’s be clear: neither number will win any awards. The 3.6L V6, while a proven and reliable engine, has to work hard to move this large vehicle, which inevitably impacts fuel consumption.

Annual fuel cost

The EPA estimates an annual fuel cost of $2,100 for the 2024 Jeep Grand Cherokee L 4WD 3.6L V6. This figure is based on driving 15,000 miles per year, with 55% of those miles driven in the city and 45% on the highway, using national average fuel prices. Of course, this is just an estimate. Your actual fuel costs will vary depending on your driving habits, the type of driving you do, and the price of gasoline in your area. However, this figure provides a baseline for understanding the potential cost of ownership.

Real-world expectations

While the EPA figures provide a useful benchmark, real-world fuel economy often differs. Grand Cherokee L owners who frequently use the four-wheel-drive system, tow trailers, or engage in aggressive driving should expect to see MPG figures below the EPA estimates. Conversely, drivers who primarily stick to the highway and adopt a gentler driving style may see slightly better results. The key takeaway is to understand how your specific usage patterns impact fuel consumption.

How it compares

Compared to its competitors, the Grand Cherokee L 4WD 3.6L V6’s fuel economy is neither spectacularly good nor shockingly bad. The Toyota Highlander V6 AWD achieves a slightly better 24 MPG combined. The Ford Explorer with its 2.3L EcoBoost engine (AWD) also manages around 23 MPG combined, delivering similar performance with potentially better fuel economy. Even the Kia Telluride and Hyundai Palisade, known for their value, often achieve real-world MPG numbers close to the Grand Cherokee L. But the Jeep counters with its off-road pedigree that these competitors cannot match. If true off-road ability is not a priority, buyers might find slightly better fuel economy elsewhere. Explore all Jeep fuel economy data on this site for other models and trims you may not have considered. You can also see GRAND MPG across all years here.

Tips to maximize efficiency

Tire pressure is often overlooked, but maintaining the recommended tire pressure for your Grand Cherokee L can noticeably improve fuel economy. Underinflated tires increase rolling resistance, forcing the engine to work harder and consume more fuel. Check your tire pressure regularly and inflate them to the recommended level, typically found on a sticker inside the driver’s side door.

Avoid unnecessary idling. The 3.6L V6 consumes fuel even when the vehicle is stationary. If you’re going to be stopped for more than a minute, it’s generally more efficient to turn off the engine. Restarting uses a negligible amount of fuel compared to prolonged idling.

Gentle acceleration and braking are key. The Grand Cherokee L is a large vehicle, and aggressive driving habits significantly impact fuel consumption. Accelerate smoothly and gradually, avoid hard braking, and maintain a consistent speed whenever possible. Anticipate traffic flow and coast when appropriate to minimize fuel use.

Consider your cargo and towing needs. Carrying unnecessary weight or towing a trailer significantly increases fuel consumption. Only carry essential items and remove any unnecessary weight from the vehicle. If you’re towing, ensure the trailer is properly loaded and balanced to minimize drag.