An EPA-estimated 18 MPG combined isn’t going to win any green awards, nor will it sway buyers cross-shopping a Prius. But for the 2020 Dodge Challenger Widebody 6.4L, that figure is almost irrelevant. Let’s be honest, the person signing on the dotted line for this car isn’t prioritizing fuel efficiency. They’re buying a statement, a modern muscle car that unapologetically embodies the spirit of American performance. The rumble of the 6.4L Hemi V8 and the aggressive styling of the Widebody package speak louder than any concerns about trips to the gas station.

City and highway performance

The EPA breaks down the Challenger Widebody’s fuel economy even further, estimating 15 MPG in the city and 24 MPG on the highway. The city figure reflects what you’d expect: frequent stops, heavy acceleration, and the engine spending a fair amount of time idling. The highway number is more respectable and attainable on longer cruises, especially if you resist the urge to dip into the engine’s considerable power reserves. The automatic 8-speed transmission certainly helps on the highway, allowing the engine to settle into a more efficient RPM range.

Annual fuel cost

The EPA estimates an annual fuel cost of $3,200 for the 2020 Dodge Challenger Widebody 6.4L. This calculation is based on driving 15,000 miles per year and using national average fuel prices. Of course, your actual fuel costs will vary depending on driving habits, local fuel prices, and how often you decide to unleash the Hemi’s full potential. Those who regularly experience the joy of burying the throttle should fully expect to exceed that $3,200 estimate.

Real-world expectations

Forget the EPA estimates for a moment. In the real world, the Challenger Widebody 6.4L rewards a gentle right foot with occasionally acceptable fuel economy, but nobody buys this car to drive gently. Expect the numbers to dip significantly, especially during spirited driving or if most of your miles are accumulated in stop-and-go traffic. The sound of that engine and the rush of acceleration are intoxicating, and restraint is often the first casualty the moment the car is started.

How it compares

Compared to the Ford Mustang GT, which achieves around 19 MPG combined, the Challenger Widebody 6.4L lags slightly behind. A Camaro SS is similar, hovering around 19 or 20 MPG with the automatic transmission. Even the Challenger R/T with the 5.7L V8 offers marginally better fuel economy. However, none of those cars offer quite the same unique blend of retro styling, spacious interior, and raw power that the Challenger delivers. Owners of these vehicles are likely prioritizing performance over efficiency, making any slight MPG differences less of a decisive factor.

Tips to maximize efficiency

Use the Challenger’s drive modes strategically. The “Eco” mode does make a difference, even if it dulls the throttle response slightly. Use it on long highway stretches when outright performance isn’t needed. Keep throttle inputs smooth and predictable to help the ECU keep the V8 within is efficiency sweet spot.

Maintain proper tire inflation. Underinflated tires increase rolling resistance and directly impact fuel economy. Refer to the sticker on the driver’s side doorjamb for the recommended tire pressure and check them regularly. This will not only save fuel, but extend the life of your tires.

Avoid unnecessary idling. Letting the engine run while stationary, even in neutral, burns fuel without covering any distance. If you anticipate a longer stop, it’s better to turn off the engine. This is especially crucial in the era of stop-start systems, where engines shut off during traffic lights.

Consider a less aggressive driving style. While it’s tempting to accelerate hard at every opportunity, this significantly reduces fuel economy. Smooth acceleration and anticipation of traffic conditions will help you maintain momentum and reduce the need for hard braking, contributing to better MPG.

Keep up with routine maintenance. A well-maintained engine runs more efficiently. Follow the recommended maintenance schedule for oil changes, air filter replacements, and spark plug replacements. Ignoring these tasks can lead to decreased performance and reduced fuel economy. You can also research all all Dodge fuel economy data and find CHALLENGER MPG across all years.