19 MPG combined is the number to accept if you want a 2021 Dodge Challenger with the 5.7L Hemi V8. It’s a number that sits between “acceptable” and “actively thirsty,” which is where loyal Challenger buyers expect it. This isn’t a car purchased for its efficiency; it’s about presence, sound, and accessible horsepower. The priority is burning rubber, not saving gasoline, and the Hemi delivers on that promise.

City and highway performance

The EPA estimates for the 2021 Dodge Challenger 5.7L are 16 MPG in the city and 25 MPG on the highway. The city figure reflects the engine’s inherent nature: a large displacement V8 working harder in stop-and-go traffic. Expect to see the fuel gauge move noticeably faster during your daily commute. The highway number is more respectable and achievable thanks to the 8-speed automatic transmission, which allows the engine to cruise at lower RPMs. But even on the open road, a heavy foot will quickly erode that 25 MPG figure. Unleashing the Hemi’s power will have an immediate impact on fuel consumption.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2021 Dodge Challenger 5.7L at $2,750. This calculation is based on driving 15,000 miles per year and assuming national average fuel prices. Of course, individual driving habits and local fuel costs will affect the actual amount you spend. Aggressive acceleration, frequent short trips, and higher local fuel prices will all push that $2,750 figure upward. If you drive less than 15,000 miles per year, you’ll likely spend less. It’s a useful benchmark, but treat it as a starting point rather than an absolute.

Real-world expectations

While the EPA provides a useful estimate, real-world mileage will vary. Challenger owners have reported city MPG figures that are closer to 14 or 15 MPG with normal driving. However, highway numbers can often exceed the EPA’s 25 MPG estimate if driven conservatively on long road trips. The car’s weight and aerodynamic profile aren’t conducive to fuel efficiency, and the engine’s responsiveness encourages drivers to dip into the throttle more often than they might in a more sensible vehicle. Most Challenger 5.7L drivers accept the less-than-stellar fuel economy as the price of admission for the performance and character the Hemi provides.

How it compares

Compared to other performance vehicles, the Challenger 5.7L’s fuel economy is about what you’d expect. The Ford Mustang GT, with its 5.0L V8, achieves a similar 15 MPG city and 24 MPG highway. The Chevy Camaro with the LT1 6.2L V8 delivers 16 MPG city and 24 MPG highway. These numbers are close enough to suggest the Challenger buyer isn’t cross-shopping based purely on MPGs. Even the V6 versions of these cars deliver only marginally better fuel economy (the Challenger SXT gets 19 MPG city and 30 MPG highway), showcasing that the Challenger’s overall design impacts fuel consumption as much as engine choice. For all Dodge fuel economy data, you can check here.

Tips to maximize efficiency

Resist the urge to accelerate hard from every stop. The Hemi V8 is immensely responsive, but each burst of acceleration consumes a significant amount of fuel. Smooth, deliberate throttle inputs will make a noticeable difference over time. Even though it’s a performance car, try to anticipate traffic and maintain a steady speed whenever possible.

Ensure your tires are properly inflated. Underinflated tires increase rolling resistance, which forces the engine to work harder and burn more fuel. Check your tire pressure regularly and inflate them to the recommended level, which can be found on a sticker inside the driver’s side door jamb. Even a few PSI under can negatively affect mileage.

Use cruise control on the highway whenever conditions allow. This helps maintain a consistent speed, minimizing unnecessary acceleration and deceleration. The 8-speed automatic transmission is designed to optimize fuel economy at cruising speeds, so let it do its job.

Consider using a lighter touch on the throttle when starting from a stop, or when going up hills. Easing into the gas pedal will use far less gas. It still has plenty of power to get you where you need to go.

Finally, understand that the 2021 Dodge Challenger 5.7L is not a fuel-sipping machine. It’s a modern muscle car, and a certain level of fuel consumption is inherent to its design and purpose. Embrace its character, enjoy the Hemi’s roar, and be realistic about your MPG expectations. You can find CHALLENGER MPG across all years here.