19 MPG combined. That’s the headline figure for the 2021 Chrysler 300 equipped with the 5.7L V8, and it’s a figure that elicits a shrug from the car’s target audience. This isn’t a car purchased to save on gas. The 300 V8 is bought for its effortless power, its comfortable ride, and its distinctly American brand of understated swagger. Efficiency is a minor concern.

City and highway performance

The EPA numbers reveal 16 MPG in the city and 25 MPG on the highway. The city figure, achieved in stop-and-go traffic, reflects the engine’s displacement and the car’s weight. The V8 needs fuel to get moving, and the 300 isn’t exactly light. Out on the open road, the eight-speed automatic transmission helps the 5.7L breathe easier. At cruising speeds, the engine settles into a more relaxed state, leading to that 25 MPG highway number. Driving style and conditions will cause results to vary from the EPA estimates.

Annual fuel cost

The EPA estimates an annual fuel cost of $2,750 for the 2021 Chrysler 300 5.7L V8. This figure is based on driving 15,000 miles per year and assumes national average fuel prices. It’s likely higher than what drivers of more fuel-efficient vehicles pay, but the 300 buyer accepts this expense as part of the ownership experience. They are often willing to pay more for the performance, comfort and image of this style of sedan.

Real-world expectations

Real-world MPG will depend on how the car is driven. If primarily used for short trips around town, that 16 MPG city figure will be the reality. Longer highway stretches will deliver closer to the 25 MPG estimate. Aggressive driving will have a negative impact on fuel economy, as will carrying heavy loads or towing. The car is capable of surprising efficiency when driven with restraint, but few owners are consciously trying to hypermile a Chrysler 300 V8.

How it compares

Compared to other large sedans, the 300’s fuel economy isn’t exactly class-leading. A 2021 Nissan Maxima, for example, achieves a combined 24 MPG from its V6 engine, offering more efficiency but sacrificing the V8 rumble and available all-wheel drive of the 300. Even the rear-wheel-drive Dodge Charger with its base V6 engine can manage 23 MPG combined. For the V8 experience, the Charger R/T with the same 5.7L also gets 19 MPG combined, proving there’s no free lunch when it comes to enjoying American V8 muscle. Those considering the 300 or Charger often aren’t cross-shopping with smaller, more efficient sedans. They prioritize the power and presence that only a larger, V8-powered car can deliver.

Tips to maximize efficiency

Gentle acceleration helps achieve the best possible gas mileage from the 5.7L V8. Avoid abrupt starts and hard braking, allowing the engine and transmission to work smoothly through their gears and stay in their most efficient ranges.

Maintain proper tire inflation. Underinflated tires increase rolling resistance, forcing the engine to work harder and burn more fuel. Check tire pressures regularly and inflate them to the manufacturer’s recommended specifications, usually found on a sticker in the driver’s side doorjamb.

Consider using cruise control on the highway. Maintaining a consistent speed helps minimize unnecessary acceleration and deceleration, improving fuel economy on longer trips. The 300’s adaptive cruise control system is a perfect tool for this type of driving.

Reduce unnecessary weight. The less weight the vehicle carries, the less energy it needs to move. Remove any unnecessary items from the trunk and back seat to improve fuel efficiency.

Keep up with scheduled maintenance. A well-maintained engine runs more efficiently. Follow the manufacturer’s recommended maintenance schedule, including regular oil changes, air filter replacements, and spark plug inspections.

For all Chrysler fuel economy data, check out FuelEconomyHub.com. You can also research 300 MPG across all years.