21 MPG combined isn’t going to win any prizes, but for the 2021 Jeep Grand Cherokee 2WD with the 3.6L V6, it’s a reasonably honest assessment of what buyers should expect. This isn’t a hyper-efficient crossover; it’s a mid-size SUV with a proven engine that’s prioritized capability and comfort over maximizing every last drop of fuel. Consider the Jeep Grand Cherokee buyer: They appreciate a reliable aesthetic, a comfortable ride, and the space to haul kids or gear. They may occasionally need to tow a small trailer. Fuel efficiency is a consideration, sure, but it rarely tops the list of priorities.

City and highway performance

The EPA numbers break down to 19 MPG in the city and 26 MPG on the highway. The city figure reflects the Grand Cherokee’s weight and the stop-and-go driving conditions inherent to urban environments. The 26 MPG highway rating, however, is more respectable. The smooth-shifting 8-speed automatic transmission helps keep the engine in its most efficient range at cruising speeds. While this isn’t going to rival a hybrid, it is respectable for this segment. Buyers who spend a lot of time on the open road will find the highway MPG surprisingly palatable, even with the V6 under the hood.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2021 Jeep Grand Cherokee 2WD 3.6L at $2,100. This figure is based on driving 15,000 miles per year and using national average fuel prices. Keep in mind that this is just an estimate; your actual fuel costs will vary depending on your driving habits, the type of fuel you use, and where you live. This number provides a useful data point for budgeting purposes and allows you to compare the Grand Cherokee’s running costs against other vehicles you may be considering. See all Jeep fuel economy data.

Real-world expectations

While EPA ratings provide a baseline, real-world fuel economy can vary significantly. Aggressive driving, frequent short trips, and carrying heavy loads will all negatively impact your mileage. Conversely, gentle acceleration, consistent highway speeds, and keeping up with scheduled maintenance can help you achieve or even exceed the EPA estimates. Monitor your MPG using the Grand Cherokee’s trip computer to get a better understanding of your personal fuel consumption habits.

How it compares

Compared to its competitors, the 2021 Jeep Grand Cherokee 2WD 3.6L lands squarely in the middle of the pack. A Toyota 4Runner, known for its ruggedness but not its efficiency, delivers around 17 MPG combined. A Ford Explorer with its base 2.3L EcoBoost engine achieves closer to 24 MPG combined, giving it a significant edge. The Honda Passport, often favored for its spaciousness and reliability, manages roughly 22 MPG combined. These numbers matter because buyers in this segment carefully weigh their needs, and fuel economy is one aspect of that assessment. Someone choosing the Grand Cherokee may be prioritizing its classic Jeep styling and towing capacity over slightly better fuel efficiency offered by competitors.

Buyers should also consider the Jeep Grand Cherokee 4xe Plug-in Hybrid powertrain if fuel economy is important. The 4xe model delivers a combined gas + electric MPG of 56 MPGe which is far superior to the standard 3.6L V6 engine. While the MSRP of the 4xe is higher than the standard V6, the savings on fuel costs will offset this difference over the lifespan of the vehicle. Check GRAND MPG across all years to compare.

Tips to maximize efficiency

Minimize idling. The 3.6L V6, like most gasoline engines, consumes fuel even when stationary. Avoid extended idling, especially in cold weather; it’s better to turn the engine off if you’re going to be stopped for more than a minute or two.

Maintain proper tire pressure. Underinflated tires increase rolling resistance, which reduces fuel economy. Check your tire pressure regularly and inflate them to the recommended level (found on the sticker inside the driver’s side doorjamb).

Use cruise control on the highway. Maintaining a consistent speed minimizes unnecessary acceleration and deceleration, which can significantly improve highway fuel economy. Use the cruise control on long, flat stretches of road to maximize your MPG.

Avoid aggressive driving. Rapid acceleration, hard braking, and high speeds all consume more fuel. Drive smoothly and anticipate traffic conditions to avoid unnecessary fuel consumption.

Lighten the load. Extra weight in the vehicle puts additional strain on the engine, which reduces fuel economy. Remove any unnecessary items from the trunk and cargo area.