19 MPG combined. Accept it or leave it. That’s the deal with the 2020 Dodge Challenger 5.7L 8-cyl, and frankly, most buyers already know that going in. They aren’t shopping for economy; they are shopping for a muscle car experience, a rumbling V8, aggressive styling, and a healthy dose of nostalgia. Fuel efficiency is a distant concern, a compromise readily accepted for the sheer joy of piloting a modern-day classic. This Challenger exists for a specific buyer: someone who prioritizes power and presence. They value the roar of the engine and the feeling of raw American muscle under their right foot. For them, the 5.7L Hemi represents a sweet spot, enough power to thrill without venturing into the even more thirsty territory of the supercharged Hellcat models. They are buying an image, a feeling, an attitude, and fuel economy is simply the price of admission.

City and highway performance

The EPA estimates of 16 MPG in the city and 25 MPG on the highway are largely indicative of the engine’s behavior. In urban settings, the Challenger’s weight and the Hemi’s inherent thirst become readily apparent. Expect frequent trips to the gas station if your daily commute involves stop-and-go traffic and short distances. However, on the open road, the eight-speed automatic transmission helps the 5.7L engine settle into a more efficient cruise, delivering those quoted highway figures. Even on the highway, a heavy foot will quickly negate any potential fuel savings. The Challenger’s power is always tempting.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2020 Dodge Challenger 5.7L 8-cyl at $2,750. This figure is based on driving 15,000 miles per year, with 45% of those miles driven in the city and 55% on the highway. The calculation also assumes national average fuel prices. Your actual fuel costs may vary depending on your driving habits, local fuel prices, and the type of fuel you use. Premium fuel is recommended, which will further inflate the yearly spend. Considering the vehicle class and the performance it delivers, this number is a key data point within the broader value of the Challenger.

Real-world expectations

While the EPA estimates provide a baseline, real-world fuel economy can vary significantly. Factors such as driving style, traffic conditions, and even tire pressure can impact your MPG. Aggressive acceleration, frequent hard braking, and prolonged idling will all contribute to lower fuel efficiency. Conversely, smooth driving, consistent speeds, and regular maintenance can help you achieve closer to the EPA estimates. Many owners report falling slightly below the combined 19 MPG in everyday driving, often hovering around 17-18 MPG. However, some owners who primarily drive on the highway have reported exceeding the 25 MPG estimate.

How it compares

Compared to other muscle cars, the 2020 Dodge Challenger 5.7L holds its own, but isn’t the class leader in fuel economy. The Ford Mustang GT, equipped with its 5.0L V8 and automatic transmission, achieves a similar EPA rating of 19 MPG combined. The Chevrolet Camaro SS, with its 6.2L V8 and automatic, posts a slightly lower 19 MPG combined, but often performs similarly to the Challenger in real-world testing. These competitors offer comparable performance and fuel economy, solidifying the Challenger’s position within its segment. Someone drawn to the Challenger’s unique styling and retro appeal is less likely to be swayed by marginal differences in MPG compared to a Mustang or Camaro. See CHALLENGER MPG across all years for more data.

Tips to maximize efficiency

Given the Challenger’s V8 engine and inherently less-than-stellar fuel economy, adopting mindful driving habits is critical for maximizing efficiency. Avoid aggressive acceleration and hard braking whenever possible. Smooth, gradual acceleration will help conserve fuel, as will anticipating traffic flow to minimize unnecessary braking. This engine responds well to gentle inputs, and mindful driving will net noticeable gains at the pump.

Ensure your tires are properly inflated to the recommended pressure. Underinflated tires increase rolling resistance, forcing the engine to work harder and consume more fuel. Check your tire pressure regularly, especially during temperature changes. Proper tire inflation not only improves fuel economy but also enhances handling and extends tire life.

Reduce idling time as much as possible. Letting the engine idle for extended periods wastes fuel and contributes to emissions. If you anticipate being stopped for more than a minute, turn off the engine. Modern vehicles are designed to restart quickly and efficiently, making it more economical to switch off the engine than to let it idle.

Use cruise control on the highway to maintain a consistent speed. Maintaining a steady speed minimizes unnecessary acceleration and deceleration, optimizing fuel efficiency. Cruise control also helps you avoid inadvertently exceeding the speed limit, which can further reduce MPG. Even slight speed increases can significantly impact fuel consumption.

Consider using a fuel additive designed to improve fuel efficiency and clean fuel injectors. While additives are not a miracle cure, some can help remove deposits from the fuel system, improving combustion and potentially increasing MPG. Research different additives and choose a reputable brand with proven results. This is especially important given the recommended premium fuel requirement, and its susceptibility to carbon buildup. Check all Dodge fuel economy data for more efficiency tips.