17 MPG combined won’t win any awards for saving gas, but the 2020 Jeep Grand Cherokee 4WD with the 5.7L V8 isn’t about sipping fuel. It’s about effortless towing, confident off-road performance, and a certain rugged charm that appeals to a specific kind of buyer: one who prioritizes capability and presence over efficiency. This is the vehicle for those who need to pull a boat to the lake, traverse a muddy trail, or simply command respect in the school drop-off lane. For them, fuel economy is a secondary concern weighed against the Grand Cherokee’s other qualities.

City and highway performance

The EPA estimates of 14 MPG in the city and 22 MPG on the highway accurately reflect what the V8 does. Stop-and-go driving exposes the engine’s thirst, as each acceleration requires a substantial gulp of gasoline. On the open road, the eight-speed automatic transmission helps to keep the engine in its best operating range, offering slightly better efficiency. The 5.7L’s ample torque means maintaining highway speeds, even when towing, requires minimal effort, although that will certainly pull the average MPG down when you’re actually doing it.

Annual fuel cost

According to the EPA, the annual fuel cost for the 2020 Jeep Grand Cherokee 4WD 5.7L 8-cyl is $3,100. This figure is based on driving 15,000 miles per year and using national average fuel prices. It’s important to remember that your actual fuel costs may vary depending on your driving habits, the type of gas you use, and local fuel prices. If you spend most of your time in city traffic or frequently tow heavy loads, expect to exceed this estimate.

Real-world expectations

Don’t expect to consistently achieve the EPA’s numbers. factors like traffic, weather, and your personal driving style, will have a significant impact on fuel economy. Owners who regularly engage the four-wheel-drive system, particularly in low range, will see a noticeable decrease in MPG. Aggressive acceleration and high speeds also contribute to lower fuel efficiency. A more realistic expectation for mixed driving is likely in the 15-18 MPG range, with highway trips potentially reaching close to the EPA’s 22 MPG figure if driven conservatively.

How it compares

The 2020 Grand Cherokee 4WD 5.7L’s fuel economy lags behind some of its competitors, especially those with smaller engines or hybrid powertrains. The Toyota 4Runner, another body-on-frame SUV with off-road aspirations, achieves a combined EPA rating of 17 MPG with its V6 engine, matching the Grand Cherokee despite having less horsepower. The Ford Explorer, particularly with its EcoBoost engines, offers significantly better fuel economy, approaching 24 MPG combined in some configurations.

Even the larger Chevy Tahoe with its 5.3L V8 can sometimes flirt with 18-19mpg but it comes at a significantly higher price point. However, note that the Jeep Grand Cherokee Trackhawk trim, available in other years, delivers truly abysmal fuel economy numbers with its supercharged engine. Check out all all Jeep fuel economy data to see which models are more efficient.

Tips to maximize efficiency

Avoid aggressive acceleration and braking. The 5.7L V8 responds best to a smooth, steady throttle. Anticipate traffic flow and maintain a consistent speed to minimize the need for sudden bursts of power. This will not only improve fuel economy but also enhance the overall driving experience.

Ensure your tires are properly inflated. Underinflated tires increase rolling resistance, which reduces fuel efficiency. Check your tire pressure regularly and inflate them to the recommended level (found on the sticker inside the driver’s side door). Remember, proper tire inflation also contributes to safer handling and longer tire life.

Minimize idling. Letting the engine idle for extended periods wastes fuel. If you’re stopped for more than a minute or two, turn off the engine. Modern engines are designed to restart quickly and efficiently, so there’s no need to keep them running unnecessarily.

Consider your driving mode. If you are not actively off-roading, try to keep it in 2WD if possible. Even selecting ‘Auto’ for the 4wd system will have an impact on MPG.

Keep up with regular maintenance. A well-maintained engine is a more efficient engine. Follow the manufacturer’s recommended maintenance schedule, including oil changes, air filter replacements, and spark plug replacements. These simple steps can help to improve fuel economy and extend the life of your vehicle. For information on GRAND MPG across all years, use our site’s search feature.