The 392 Charger is a high-performance sedan with a large V8 engine

The Dodge Charger 392 is a four-door muscle car powered by a 6.4-liter V8 engine that produces around 485 horsepower. Dodge made this model from 2015 through 2023, and it was one of the last American muscle cars built with a traditional gasoline engine rather than an electric motor. The "392" refers to the engine's displacement in cubic inches — a measurement from an earlier era of car naming that Dodge kept for brand recognition.

If you own one, are thinking about buying one, or are curious about what makes it different from other cars on the road, understanding its engine size and fuel consumption matters both to your budget and to the environment. The 392 Charger sits at the extreme end of the performance spectrum, which means it costs significantly more to fuel and produces more emissions than most other vehicles.

Key Takeaways

  • The 392 Charger's 6.4-liter V8 engine gets roughly 16 to 19 miles per gallon depending on driving conditions, which is well below the average for new cars.
  • A 392 Charger produces substantially higher carbon dioxide emissions per mile than sedans with smaller engines or hybrid powertrains.
  • The cost to fuel a 392 Charger is roughly double what you would spend on a mid-size sedan with a four-cylinder engine over the same distance.
  • Dodge discontinued the 392 Charger after 2023 as the automotive industry shifted toward electric vehicles and stricter emissions standards.

Fuel economy and what it costs you annually

The 392 Charger's fuel economy ranges from about 16 miles per gallon in city driving to 19 miles per gallon on the highway, with combined estimates around 17 to 18 mpg. That number varies slightly depending on the year, transmission type, and whether you drive mostly in stop-and-go traffic or on open roads. For comparison, a typical four-cylinder sedan gets 28 to 35 mpg combined.

To see what this means in dollars, imagine driving 12,000 miles per year — the national average. At 18 mpg and a gas price of $3.50 per gallon, you would spend roughly $2,330 per year on fuel. The same 12,000 miles in a 30 mpg sedan would cost about $1,400. That is a difference of around $930 per year, or nearly $10,000 over a decade of ownership. Insurance, maintenance, and repairs on a high-performance V8 also run higher than on standard vehicles.

Emissions and environmental impact

The 392 Charger's large V8 engine produces approximately 475 to 485 grams of carbon dioxide per mile, depending on driving conditions. The U.S. Environmental Protection Agency (EPA) uses this measurement to rate vehicles' climate impact. A typical mid-size sedan with a four-cylinder engine produces roughly 250 to 300 grams of CO2 per mile, and hybrid vehicles produce even less.

Over a year of average driving, a 392 Charger would produce roughly 5.7 to 5.8 metric tons of carbon dioxide. That is nearly double what a comparable four-cylinder sedan produces. The 392 Charger also emits higher levels of nitrogen oxides and particulate matter, which contribute to smog and air quality problems in urban areas.

Why Dodge stopped making the 392 Charger

Dodge discontinued the 392 Charger after the 2023 model year as part of a broader industry shift toward electric vehicles. The company faced tightening federal fuel economy standards and emissions regulations that made it increasingly difficult and expensive to sell large V8 engines. In 2024, Dodge introduced the Charger Daytona, an all-electric version with a different design and performance profile.

The decision reflects a larger trend: traditional muscle cars with large gasoline engines are becoming rare. Manufacturers are investing in electric powertrains because they produce zero tailpipe emissions, meet future regulatory requirements, and appeal to buyers concerned about fuel costs and environmental impact. If you are interested in high-performance driving, electric vehicles now offer comparable or superior acceleration with a fraction of the operating cost.

Comparing the 392 Charger to other performance options

If you are drawn to the 392 Charger's power but concerned about fuel costs or emissions, several alternatives exist. The Dodge Charger R/T, which uses a 5.7-liter V8, produces about 370 horsepower and gets roughly 2 to 3 mpg better fuel economy than the 392. The Chevrolet Camaro SS and Pontiac GTO (if buying used) offer similar performance with slightly better efficiency. For buyers willing to go electric, the Tesla Model S Plaid and Lucid Air both deliver supercar-level acceleration with zero emissions and far lower operating costs.

Hybrid performance cars like the Lexus LC 500h offer a middle ground — they combine a V8 engine with electric motors to improve fuel economy without sacrificing power. These vehicles typically achieve 20 to 24 mpg combined, cutting fuel costs roughly in half compared to the 392 Charger while still delivering strong performance.

Used 392 Charger market and long-term ownership costs

Because Dodge stopped production after 2023, used 392 Chargers are becoming more available on the secondhand market. Prices vary widely depending on mileage, condition, and model year, but a used 392 Charger typically costs $35,000 to $50,000 or more. Before buying, factor in the full cost of ownership: fuel, insurance (which runs 15 to 25 percent higher than standard sedans), maintenance, and repairs.

V8 engines require more frequent oil changes, spark plug replacements, and other service than smaller engines. Brake and tire wear also accelerates on high-performance vehicles. Over five years of ownership, total fuel and maintenance costs can easily exceed $15,000 to $20,000 beyond what you would spend on a standard sedan. That is a real consideration if budget matters to your decision.

Frequently Asked Questions

How much does it cost to fill up a 392 Charger?

The 392 Charger has a 18.5-gallon fuel tank. At current gas prices around $3.50 per gallon, a full tank costs roughly $65. If you drive 12,000 miles per year at 18 mpg, you would fill up about 667 times per year, spending approximately $2,330 annually on fuel alone.

Is a used 392 Charger a good investment?

A 392 Charger is a depreciating asset, not an investment. It loses value each year, and fuel and maintenance costs are high. Buy one only if you value the driving experience enough to accept those costs. Treat it as a purchase for enjoyment, not as a financial decision.

Can I make a 392 Charger more fuel-efficient?

Modest improvements are possible through regular maintenance, proper tire inflation, and smoother driving habits, but you will not dramatically change fuel economy. The engine's size and design set hard limits. If fuel economy is a priority, a different vehicle is a better choice.

What is the difference between a 392 and a 440 Charger?

The 440 was a larger engine used in older Dodge Chargers from the 1960s and 1970s. The modern 392 is a different engine entirely, built with modern fuel injection and emissions controls. They are not directly comparable — the 392 is far more efficient and reliable than vintage 440s, though less powerful in raw numbers.

Will electric Chargers eventually replace gas models completely?

Yes. Dodge's 2024 Charger Daytona is fully electric, and the company has stated it will not return to gasoline engines for this model line. Across the industry, traditional V8 muscle cars are being phased out in favor of electric performance vehicles that meet emissions standards and appeal to modern buyers.