The 2015 Dodge Charger's fuel economy and emissions ratings

The 2015 Dodge Charger is a full-size sedan that comes in several engine options, and each one has different fuel economy and emissions numbers. The base model uses a 3.6-liter V6 engine that gets roughly 25 miles per gallon on the highway and 16 miles per gallon in the city when paired with an eight-speed automatic transmission. The higher-performance models — the R/T and SRT — use a 5.7-liter V8 engine that gets around 23 miles per gallon on the highway and 15 miles per gallon in the city.

These figures matter because they affect both what you spend on gas and what emissions your vehicle produces. The EPA assigns each vehicle a rating based on how much carbon dioxide it releases per mile driven. The 2015 Charger V6 produces approximately 360 grams of CO2 per mile, while the V8 models produce roughly 420 grams per mile. Neither model qualifies as a low-emissions vehicle under EPA standards, which means they fall into the standard emissions category.

Key Takeaways

  • The 2015 Charger V6 achieves better fuel economy (around 20 mpg combined) than the V8 models (around 19 mpg combined), which directly affects both your fuel costs and tailpipe emissions.
  • All 2015 Charger models meet federal emissions standards but do not may have access to as low-emissions or zero-emissions vehicles.
  • Real-world fuel economy depends on your driving habits, road conditions, and maintenance — highway driving typically yields better mileage than city driving for this vehicle.
  • If emissions or fuel costs are a primary concern, comparing the 2015 Charger to hybrid or electric sedans may show significant differences in both categories.

How the 2015 Charger compares to other sedans from that year

In 2015, the Charger was one of the few full-size performance sedans available. Most other large sedans that year — like the Chevrolet Impala or Chrysler 300 — offered similar engine choices and comparable fuel economy numbers. The Impala with a V6 achieved roughly 25 highway and 17 city, putting it very close to the Charger's performance.

If you were shopping for a sedan in 2015 and fuel economy was a priority, mid-size options like the Toyota Camry or Honda Accord offered noticeably better mileage — often in the 28 to 34 mpg highway range depending on the engine. The trade-off was that those vehicles prioritized efficiency over the Charger's emphasis on power and handling.

What affects real-world fuel economy in a 2015 Charger

The EPA numbers are estimates based on a standardized test, but what you actually see at the pump depends on several factors. Aggressive acceleration and frequent braking reduce fuel economy significantly — highway driving at steady speeds typically yields better results than city driving with traffic stops. A 2015 Charger driven mostly on highways might achieve close to the EPA estimate, while the same vehicle in heavy city traffic could see 2 to 4 miles per gallon lower.

Tire pressure, engine maintenance, and vehicle weight also matter. Under-inflated tires increase rolling resistance and lower fuel economy. A well-maintained engine with fresh spark plugs and a clean air filter runs more efficiently than one that has been neglected. Carrying extra weight — roof racks, cargo, or passengers — reduces mileage across all driving conditions.

Understanding emissions testing and what the numbers mean

The EPA tests vehicles in a laboratory using a standardized driving cycle that simulates both city and highway conditions. The test measures how much carbon dioxide, nitrogen oxides, and particulate matter the vehicle releases. The 2015 Charger passes all federal emissions standards, which means it meets the legal limits for pollutants in every state.

However, passing federal standards does not mean the vehicle produces low emissions — it means it produces emissions within the legal ceiling. Some vehicles earn special designations like "Low Emissions Vehicle" (LEV) or "Ultra Low Emissions Vehicle" (ULEV) because they produce significantly less than the federal limit. The 2015 Charger does not carry either designation, placing it in the standard category.

Maintenance that affects fuel economy and emissions

Regular maintenance keeps your 2015 Charger running efficiently and helps it stay within emissions standards. An engine that misfires or runs rich (too much fuel, not enough air) wastes gas and produces higher emissions. The check engine light often signals a problem that affects both fuel economy and emissions — a faulty oxygen sensor, for example, can reduce mileage by 10 to 20 percent.

Oil changes, air filter replacements, and spark plug service are straightforward tasks that support efficiency. Using the manufacturer's recommended oil grade and fuel octane also matters — using lower-octane fuel than recommended can cause knocking and reduce efficiency. If you own a 2015 Charger, checking your owner's manual for the maintenance schedule and following it helps preserve both fuel economy and emissions performance.

How to find the specific emissions rating for your vehicle

Every 2015 Charger has a window sticker that was placed on it at the dealership, and that sticker includes the EPA fuel economy and emissions information. If you no longer have the sticker, you can look up your vehicle on the EPA's website at fueleconomy.gov. Enter the year, make, model, and engine size, and the site will show you the official EPA numbers for your specific configuration.

Your vehicle's VIN (Vehicle Identification Number) also contains information about the engine and transmission, which determine the fuel economy rating. If you are buying a used 2015 Charger, the seller should be able to provide documentation of the original window sticker, or you can verify the engine size and transmission type yourself and cross-reference it on fueleconomy.gov.

Frequently Asked Questions

Does the 2015 Charger meet current emissions standards?

The 2015 Charger meets the federal emissions standards that were in effect when it was manufactured. However, emissions standards have become stricter since 2015, so newer vehicles typically produce lower emissions. Whether the 2015 Charger meets your state's current standards depends on where you live — some states have adopted California's stricter rules.

Can I improve the fuel economy of a 2015 Charger?

You can improve fuel economy through driving habits and maintenance. Smooth acceleration, steady highway speeds, proper tire pressure, and regular engine maintenance all help. Aftermarket modifications like performance chips or exhaust systems may claim to improve mileage, but results vary and some can affect emissions compliance.

What is the difference between the V6 and V8 models in terms of fuel economy?

The V6 model achieves roughly 1 to 2 miles per gallon better combined fuel economy than the V8 models. Over a year of typical driving, this difference translates to a few hundred dollars in fuel costs, depending on gas prices and how much you drive.

Is the 2015 Charger considered a gas guzzler?

The EPA does not officially label the 2015 Charger as a gas guzzler, though it does not achieve high fuel economy compared to modern standards. Gas guzzler status typically applies to vehicles that achieve 12.5 mpg combined or lower, and the Charger exceeds that threshold.