Engine, Fuel Type, and Basic Specs

The 2018 Dodge Charger SXT Plus comes with a 3.6-liter V6 engine that produces 292 horsepower. It runs on regular unleaded gasoline — you do not need premium fuel, which keeps your fuel costs lower than some competing sedans.

This model is a four-door sedan with rear-wheel drive. The SXT Plus trim sits in the middle of the Charger lineup, above the base SXT but below the higher-performance R/T and SRT models. It seats five passengers and comes with a standard eight-speed automatic transmission.

Key Takeaways

  • The 2018 Charger SXT Plus has a 3.6-liter V6 engine using regular unleaded gasoline, not premium.
  • EPA estimates show this model gets approximately 19 miles per gallon in the city and 31 on the highway, though real-world results depend on driving habits and conditions.
  • The vehicle produces 292 horsepower and uses rear-wheel drive, which affects handling and traction in snow or ice.
  • Emissions standards for 2018 models meet federal requirements for that model year, but vary by state and local regulations.

Fuel Economy and Real-World Mileage

The EPA estimates the 2018 Charger SXT Plus at 19 miles per gallon in city driving and 31 miles per gallon on the highway. The combined estimate is 24 miles per gallon. These are estimates based on standardized testing, and your actual mileage will differ based on how you drive, road conditions, traffic, and how well the vehicle is maintained.

Aggressive acceleration, frequent idling, and highway driving at high speeds all reduce fuel economy. Regular maintenance — keeping the engine tuned, tires properly inflated, and the air filter clean — helps you stay closer to the EPA estimates. If you are comparing this model to others, remember that the V6 engine in the SXT Plus uses less fuel than the V8 engines in the R/T and SRT versions of the same year.

Emissions and Environmental Standards

The 2018 Dodge Charger SXT Plus meets the federal emissions standards set by the Environmental Protection Agency for that model year. These standards limit how much nitrogen oxides, particulate matter, and other pollutants the vehicle can release. However, some states — California, New York, Massachusetts, and several others — have adopted stricter emissions rules than the federal baseline, and vehicles sold in those states meet those higher standards instead.

You can find the specific emissions tier for your vehicle on the emissions label under the hood or in your owner's manual. If you are buying a used 2018 Charger SXT Plus from out of state, check whether your state's emissions rules would explore to that vehicle, as some states require vehicles to meet their local standards regardless of where the car was originally sold.

Transmission and Drivetrain

The eight-speed automatic transmission in the 2018 SXT Plus shifts smoothly during normal driving and helps optimize fuel economy by keeping the engine at efficient RPMs. The transmission is paired with rear-wheel drive, which means the engine's power goes to the rear wheels.

Rear-wheel drive affects how the car handles in different conditions. On dry pavement, it provides balanced handling. In snow, ice, or heavy rain, rear-wheel drive can make the vehicle more prone to sliding if you accelerate too quickly or brake hard. If you live in an area with frequent winter weather, this is an important factor to consider when comparing the Charger SXT Plus to front-wheel-drive alternatives.

Engine Performance and Power Delivery

The 3.6-liter V6 produces 292 horsepower and 260 pound-feet of torque. This is enough power for highway merging and passing, but the Charger SXT Plus is not designed for high-performance driving. The engine is naturally aspirated, meaning it does not use a turbocharger or supercharger to boost power.

Acceleration from a stop to 60 miles per hour takes approximately 7 to 8 seconds, depending on driving conditions and how the transmission responds. The engine is reliable and straightforward to maintain, with no special fuel requirements or complex emissions equipment that differs significantly from other 2018 sedans in its class.

Maintenance and Long-Term Ownership

The 2018 Charger SXT Plus requires routine maintenance: oil changes every 10,000 miles, tire rotation, air filter replacement, and transmission fluid checks. The V6 engine is durable and has a solid track record in Dodge vehicles. Parts are widely available and relatively affordable compared to luxury brands.

If you are considering buying a used 2018 model, have a mechanic inspect the transmission, suspension, and brakes before purchase. Check the maintenance history to see whether the previous owner kept up with scheduled service. A well-maintained example should have many years of reliable use ahead.

Comparison to Other 2018 Sedans

The Charger SXT Plus sits between economy sedans and high-performance models. It offers more power than a Honda Accord or Toyota Camry V6, but uses less fuel and costs less to maintain than a Dodge Charger R/T. If you want a full-size American sedan with V6 power and rear-wheel drive, the SXT Plus is one of the few options still available in the used market from that year.

Compared to front-wheel-drive competitors like the Chrysler 300 or Nissan Maxima, the Charger SXT Plus offers sportier handling but less interior space. If fuel economy is your top priority, a four-cylinder sedan will outperform it. If you prioritize power and driving feel, the SXT Plus delivers more than most mid-size competitors.

Frequently Asked Questions

Does the 2018 Charger SXT Plus need premium gasoline?

No. The 3.6-liter V6 engine runs on regular unleaded gasoline. Using premium fuel will not improve performance or fuel economy, so it is an unnecessary expense.

How much does it cost to fill the tank?

The 2018 Charger SXT Plus has a 18.5-gallon fuel tank. At current gas prices in your area, multiply the price per gallon by 18.5 to estimate your fill-up cost. Actual cost varies based on local fuel prices and how much fuel you use before refilling.

What is the difference between the SXT Plus and the R/T model?

The R/T uses a 5.7-liter V8 engine with 370 horsepower instead of the V6. It accelerates faster, sounds louder, and uses more fuel — typically 16 city and 25 highway. The SXT Plus is the more practical choice if you drive daily and care about fuel costs.

Can I tow a trailer with this vehicle?

The 2018 Charger SXT Plus is not rated for towing. Dodge does not publish a towing capacity for this model because the rear-wheel-drive sedan platform is not designed for that purpose. Check your owner's manual to confirm, as specifications can vary.

What should I check before buying a used 2018 Charger SXT Plus?

Have a mechanic inspect the transmission for smooth shifting, check the suspension and brakes for wear, and review the full maintenance history. Look for any signs of overheating, transmission fluid leaks, or electrical issues. A pre-purchase inspection costs $100 to $200 and can save you from expensive repairs later.