21 MPG combined. Let’s be honest, that’s not why anyone buys the 2018 Dodge Challenger GT with the 3.6L V6. This isn’t a fuel sipper aimed at hypermilers; it’s a stylish, comfortable, and surprisingly capable all-weather coupe that prioritizes attitude and driving enjoyment over ultimate efficiency. The target customer likely loves the Challenger’s iconic design and wants a fun-to-drive car but needs the practicality (and slightly lower cost) of the V6 over a Hemi V8. They understand there’s a trade-off between power and gas mileage, and they’re willingly making that choice.

City and highway performance

The EPA estimates for the 2018 Challenger GT are 18 MPG in the city and 27 MPG on the highway. The city number isn’t exactly stellar, and you’ll likely see that drop further if you’re frequently engaging in stop-and-go traffic or indulging in spirited launches from every red light. The highway figure is more respectable and achievable during long road trips, aided by the smooth-shifting eight-speed automatic transmission that helps keep the engine in its optimal rev range. Just remember that the more you tap into that readily available power, the closer you’ll be to the city figure than the highway one.

Annual fuel cost

The EPA estimates that the annual fuel cost for the 2018 Dodge Challenger GT 3.6L is $2,100. This figure is based on driving 15,000 miles per year and using national average fuel prices. It’s important to understand that this is simply an estimate. Your actual fuel costs will vary depending on your driving habits, the type of driving you do (mostly city vs. highway), and the prevailing fuel prices in your area. If you drive less than 15,000 miles annually, or if fuel prices are lower where you live, you will likely spend less. Heavy-footed drivers covering more miles in expensive locations could easily exceed that $2,100 mark. Factors such as tire pressure, vehicle maintenance, and even roof racks can all influence your real-world spending.

Real-world expectations

While the EPA estimates provide a useful baseline, real-world fuel economy for the 2018 Challenger GT can vary considerably. Many owners average around 20-23 MPG in mixed driving conditions, although this drops when driving aggressively. Consistent highway driving can yield numbers close to the EPA’s 27 MPG, but city driving often hovers in the low to mid teens for those with a lead foot. Remember, the Challenger’s AWD system also adds a small amount of weight and friction, with a corresponding impact on MPG. Checking CHALLENGER MPG across all years will show a variety of owner-reported MPG numbers.

How it compares

The Challenger exists in a unique space. Compared to other sporty coupes, its fuel economy lands somewhere in the middle. For example, the Ford Mustang EcoBoost (2.3L turbo) typically achieves better fuel economy, with some owners reporting averages in the mid-20s combined. The Nissan 370Z, while more focused on performance, comes in around the same neighborhood with estimates in the low 20s combined. The Chevy Camaro with a V6 achieves slightly better estimates with 22 MPG combined, but it’s not the significant difference you might think. The Challenger’s AWD system, unavailable on the Mustang and Camaro, is a key differentiator for buyers in colder climates, and a trade-off many are willing to make even if it means sacrificing a mile or two per gallon. For drivers looking at all Dodge fuel economy data, the Charger V6 is closely related drivetrain-wise and delivers similar MPG figures.

Tips to maximize efficiency

Gentle acceleration is key to maximizing fuel efficiency with the Challenger GT. Avoid aggressive starts and hard braking, as these actions consume more fuel. A smooth and steady driving style, anticipating traffic flow to minimize unnecessary acceleration and deceleration, will pay noticeable dividends in MPG over time.

Proper tire inflation significantly impacts fuel economy. Check your tires regularly and ensure they are inflated to the recommended pressure, which is typically found on a sticker inside the driver’s side doorjamb. Underinflated tires create more rolling resistance, forcing the engine to work harder and burn more fuel.

Regular maintenance is also critical. Keep your engine properly tuned with regular oil changes and air filter replacements. A clean engine runs more efficiently, reducing fuel consumption. Also, the eight-speed automatic transmission needs regular servicing to ensure proper operation and efficiency.

Reduce unnecessary weight in the vehicle. Carrying extra cargo increases the load on the engine, reducing fuel economy. Remove any items you don’t need from the trunk or back seat. Even small weight reductions can add up over time.