The 2021 Jeep Grand Cherokee L 4WD with its 5.7L V8 gets 17 MPG combined. This isn’t going to lead any fuel efficiency charts, but it shows what this configuration is designed for. Buyers of this Grand Cherokee L aren’t prioritizing fuel costs. They want the strong capability and confident towing that comes with a powerful V8, in a comfortable three-row SUV. The fuel consumption is part of what it costs.

City and highway performance

The EPA estimates for the 2021 Grand Cherokee L 4×4 with the 5.7L V8 are 14 MPG in the city and 22 MPG on the highway. The city number reflects the engine’s appetite during stop-and-go driving, where its weight takes its toll. The highway number is better, showing that the eight-speed automatic transmission can use its higher gears to deliver efficient cruising when the engine load is low. Even on the open road, the Grand Cherokee L’s shape and weight keep it from amazing fuel efficiency. To see what others are getting, search GRAND MPG across all years.

Annual fuel cost

The EPA estimates the annual fuel cost for this Grand Cherokee L configuration is $3,100. This is based on driving 15,000 miles per year, with 55% of those miles in the city and 45% on the highway. The calculation also assumes national average fuel prices. This $3,100 is a benchmark, but fuel expenses will vary based on driving habits, local fuel costs, and the driving. If you frequently tow or use four-wheel drive, fuel consumption will increase, raising the annual cost.

Real-world expectations

The EPA estimates provide a baseline, but real-world MPG often differs. Grand Cherokee L 5.7L owners who frequently tow, drive off-road, or mainly drive in cities will likely see fuel economy below the official ratings. Drivers who focus on highway cruising and drive carefully may see numbers closer to, or slightly exceeding, the EPA estimates. Individual results depend on many factors.

How it compares

The 2021 Grand Cherokee L 4×4 5.7L’s fuel economy isn’t as good as some competitors. The Ford Explorer with its 2.3L EcoBoost engine gets around 24 MPG combined, even in four-wheel drive. However the Explorer won’t provide the reliable V8 towing performance of the Jeep. The Toyota Highlander, known for its efficiency, gets around 23 MPG combined in its V6 configuration, a notable advantage. Even the Chevrolet Traverse, a larger three-row SUV, manages around 20 MPG combined with its V6 engine. These comparisons highlight that the Grand Cherokee L 5.7L consumes more fuel, which buyers accept for the V8’s power and towing. For those not needing the V8, the Grand Cherokee L’s V6 versions offer better fuel economy, and you can view all Jeep fuel economy data.

Tips to maximize efficiency

Avoid aggressive acceleration. The 5.7L V8 responds quickly, but acceleration requires fuel. Gentle acceleration and a steady pace will improve fuel economy.

Monitor tire pressure. Underinflated tires increase rolling resistance, making the engine work harder. Check and maintain the recommended tire pressure to improve fuel efficiency.

Minimize idling. Idling consumes fuel without moving. If you will be stopped for more than a minute, turn off the engine. This is important in city driving.

Reduce unnecessary weight. Heavy cargo adds strain to the engine, increasing fuel consumption. Remove unneeded items from the vehicle to lighten the load.

Plan your trips efficiently. Combining errands minimizes cold starts, which use a lot of fuel. Route planning can help you avoid traffic and improve driving efficiency.