What the 2014 Dodge Charger R/T actually delivers in fuel economy and emissions

The 2014 Dodge Charger R/T is a full-size sedan powered by a 5.7-liter V8 engine that produces 370 horsepower. The EPA rates it at 16 miles per gallon in the city, 25 mpg on the highway, and 19 mpg combined. These numbers place it in the lower range for fuel economy among sedans, even accounting for its performance-oriented design.

Emissions-wise, the 2014 Charger R/T meets the federal Tier 2 Bin 5 standard and California's LEV II standard, depending on where the vehicle was sold. It carries a gross vehicle weight rating of approximately 4,400 pounds and falls into the full-size sedan category for EPA classification purposes. The vehicle is not a hybrid, plug-in hybrid, or alternative-fuel model—it runs exclusively on regular unleaded gasoline.

Key Takeaways

  • The 2014 Charger R/T achieves 16 city / 25 highway / 19 combined mpg according to EPA testing, making it less fuel-efficient than most mid-size sedans.
  • Real-world fuel economy typically runs 1 to 3 mpg lower than EPA estimates, especially in city driving or with aggressive acceleration.
  • The vehicle meets federal Tier 2 Bin 5 emissions standards and California LEV II standards, but produces higher tailpipe emissions than smaller, turbocharged engines.
  • Maintenance costs for the 5.7L V8 are higher than four- or six-cylinder engines due to spark plug count, oil capacity, and parts availability.
  • Fuel tank capacity is 18.5 gallons, giving a theoretical highway range of approximately 460 miles on a full tank.

How the 5.7-liter V8 engine affects fuel consumption

The 5.7-liter V8 in the 2014 Charger R/T is a naturally aspirated engine with eight cylinders, meaning it draws air without a turbocharger or supercharger. Larger displacement engines consume more fuel per cycle because they burn more gasoline to produce power. The Charger R/T prioritizes performance—acceleration, towing capacity, and sustained power delivery—over fuel economy.

Driving habits have a measurable impact on this engine's consumption. Steady highway driving at 55 to 65 mph typically yields results close to the EPA highway estimate. City driving, frequent acceleration, and idling in traffic reduce efficiency noticeably. Owners who drive aggressively or use the vehicle for towing report fuel economy in the 13 to 15 mpg range. Cold starts and short trips also reduce efficiency because the engine requires more fuel during warm-up.

Tire pressure, wheel alignment, and air filter condition all influence fuel economy on the 2014 Charger R/T. Under-inflated tires increase rolling resistance and can reduce mpg by 1 to 2 points. A clogged air filter forces the engine to work harder and can reduce efficiency by a similar margin.

Emissions standards and what they mean for this model year

The 2014 Dodge Charger R/T meets the federal Tier 2 Bin 5 emissions standard, which limits tailpipe emissions of nitrogen oxides (NOx), particulate matter, and volatile organic compounds. This standard was in effect for model years 2004 through 2014. The vehicle also meets California's LEV II (Low Emission Vehicle II) standard if it was sold in California or a state that follows California's emissions rules.

Tier 2 Bin 5 is a middle-tier standard—not the cleanest available, but not the dirtiest either. Smaller, turbocharged engines and hybrid vehicles typically meet stricter bins. The 2014 Charger R/T does not have a diesel particulate filter or selective catalytic reduction (SCR) system, technologies that became more common in later model years to reduce NOx further.

The vehicle's catalytic converter and oxygen sensors work together to monitor and reduce emissions during operation. If the check engine light comes on, it often signals a problem with one of these emissions control components. Replacing a catalytic converter on a V8 is more expensive than on a four-cylinder engine because the parts are larger and labor time is greater.

Real-world fuel economy versus EPA estimates

EPA fuel economy tests are conducted in a laboratory under controlled conditions: moderate acceleration, steady speeds, and no air conditioning use. Real-world driving differs significantly. Most owners of the 2014 Charger R/T report fuel economy 1 to 3 mpg lower than the EPA combined estimate of 19 mpg, meaning actual results often fall between 16 and 18 mpg combined.

Several factors explain this gap. EPA testing does not account for extended idling, frequent stop-and-go traffic, or the use of air conditioning at highway speeds—all of which reduce efficiency. The test also assumes a relatively new engine in good condition; older examples with worn piston rings or carbon buildup may see further reductions. Fuel quality matters too; premium gasoline (91 or 93 octane) can improve combustion efficiency slightly compared to regular unleaded, though the Charger R/T does not require it.

Winter driving reduces fuel economy by 10 to 15 percent because cold engines require richer fuel mixtures and tire rolling resistance increases on cold pavement. Owners in northern climates should expect notably lower winter mpg than summer figures.

Maintenance costs tied to engine size and emissions systems

The 5.7-liter V8 requires eight spark plugs instead of four or six, and they typically need replacement every 30,000 miles. An oil change uses 5.7 quarts of oil instead of 4 to 5 quarts in a smaller engine. Coolant capacity is larger, and the radiator and water pump are sized accordingly. When these components fail, replacement parts and labor costs reflect the engine's size and complexity.

The emissions control system adds to maintenance considerations. The catalytic converter is a wear item that can fail between 80,000 and 150,000 miles depending on driving conditions. Replacement costs range widely based on whether you choose an OEM (original equipment manufacturer) part or an aftermarket alternative. Oxygen sensors, which monitor emissions, may also need replacement during the vehicle's life.

Fuel injector cleaning, transmission fluid changes, and brake service are not specific to the V8, but the Charger R/T's weight and power mean brake pads and rotors wear faster than in lighter vehicles. Budget for more frequent brake maintenance if the vehicle is driven in stop-and-go traffic regularly.

Comparing the 2014 Charger R/T to other full-size sedans

The 2014 Charger R/T's 19 mpg combined rating is lower than most competitors in its class. A 2014 Chevrolet Impala with a 3.6-liter V6 achieved 18 mpg combined; a 2014 Chrysler 300 with the same 5.7L V8 matched the Charger's 19 mpg. A 2014 Ford Taurus with a 3.5-liter V6 achieved 19 mpg combined as well, though it produced less power.

Fuel economy improves significantly if you step down to mid-size sedans or those with turbocharged four-cylinder engines. A 2014 Honda Accord with a 2.4-liter four-cylinder achieved 25 mpg combined. A 2014 Toyota Camry with a 2.5-liter four-cylinder achieved 28 mpg combined. These vehicles sacrifice the Charger R/T's acceleration and towing capacity but deliver substantially better fuel economy and lower emissions.

If performance is the priority, the 2014 Charger R/T's fuel economy is competitive with other V8-powered full-size sedans. If fuel economy is the priority, a smaller engine or hybrid powertrain is necessary.

Fuel tank capacity and driving range

The 2014 Dodge Charger R/T has an 18.5-gallon fuel tank. On the EPA highway estimate of 25 mpg, a full tank provides approximately 462 miles of range. On the EPA city estimate of 16 mpg, a full tank provides approximately 296 miles of range. Combined driving typically yields a range of 350 to 400 miles per tank.

The fuel gauge on the Charger R/T typically shows a quarter tank remaining when approximately 4 to 5 gallons are left. This means you can usually drive 60 to 125 miles after the gauge reaches the quarter-tank mark, depending on driving conditions. Waiting until the tank is nearly empty before refueling stresses the fuel pump and can introduce sediment into the fuel system, so most mechanics recommend refueling when the gauge reaches one-quarter full.

Frequently Asked Questions

Does the 2014 Charger R/T require premium gasoline?

No. The 2014 Charger R/T runs on regular unleaded gasoline (87 octane). The owner's manual does not require premium fuel, though some owners report slightly better performance or fuel economy with 91 or 93 octane. Premium is optional, not necessary.

What is the difference between the Charger R/T and the Charger SXT?

The 2014 Charger R/T uses a 5.7-liter V8 with 370 hp, while the Charger SXT uses a 3.6-liter V6 with 292 hp. The SXT achieves approximately 18 mpg combined and produces less power but costs less to purchase and operate. The R/T is the performance-focused model.

How often do spark plugs need replacement on the 2014 Charger R/T?

Dodge recommends spark plug replacement every 30,000 miles for the 2014 Charger R/T. Eight plugs are required, and labor time is typically 1 to 2 hours. Some owners extend intervals to 50,000 miles without issues, but following the manufacturer's schedule helps maintain emissions compliance and fuel economy.

Can I improve fuel economy on a 2014 Charger R/T?

Modest improvements are possible through maintenance: keeping tires properly inflated, replacing air filters on schedule, and using the recommended oil viscosity. Driving habits matter most—steady speeds and gentle acceleration yield better results than aggressive driving. Aftermarket modifications like intake systems or exhaust changes may reduce fuel economy rather than improve it.

What emissions standard does the 2014 Charger R/T meet?

The 2014 Charger R/T meets the federal Tier 2 Bin 5 standard and California LEV II standards. It does not have advanced emissions control systems like selective catalytic reduction found on diesel engines or newer gasoline models. The catalytic converter and oxygen sensors are the primary emissions control components.