A combined fuel economy of 21 MPG isn’t going to win any awards, but for the 2018 Chrysler 300 AWD with the 3.6L V6, it’s a compromise accepted by a specific type of buyer. This isn’t a car bought for efficiency, it’s purchased for its spacious interior, distinctive styling, and the confident presence it projects on the road, offering the reassurance of all-wheel drive. Fuel economy is a consideration, but not the main reason for buying it.

City and highway performance

The EPA estimates provide a breakdown of the 300’s fuel consumption in different driving conditions. The city MPG is rated at 18, reflecting the increased fuel usage in stop-and-go traffic. Highway driving sees a significant improvement to 27 MPG. This difference shows the impact of consistent speeds and reduced acceleration on fuel efficiency. The allure of all-wheel drive is strong, but keep in mind that it introduces additional weight and mechanical drag, which impacts fuel consumption compared to the rear-wheel drive variant of the 300.

Annual fuel cost

According to the EPA, the estimated annual fuel cost for the 2018 Chrysler 300 AWD 3.6L V6 is $2,100. This figure is calculated based on driving 15,000 miles per year, using national average fuel prices. It’s a useful guideline, but your actual fuel expenses will vary depending on your individual driving habits, the type of roads you frequent, and fluctuations in gasoline prices. Drivers who primarily stick to city streets will likely see a higher annual fuel cost, while those who do more highway driving could potentially spend less.

Real-world expectations

EPA estimates are a helpful starting point, but real-world fuel economy often differs. The 2018 Chrysler 300 AWD 3.6L V6, equipped with a smooth-shifting 8-speed automatic transmission designed to optimize fuel efficiency, is still a fairly heavy car with all-wheel drive. Aggressive driving, frequent short trips, and carrying extra weight in the vehicle can all contribute to lower MPG figures than the EPA suggests. A cautious driver prioritizing smooth acceleration and consistent speeds might see results that are closer to, or even slightly exceed, the official highway estimate. Access all Chrysler fuel economy data on this site.

How it compares

Compared to its competitors, the 2018 Chrysler 300 AWD 3.6L V6 is in the middle in terms of fuel economy. The Toyota Avalon XLE achieves a slightly better 25 MPG combined with its V6 engine, though it lacks the available all-wheel drive. The Nissan Maxima, another V6-powered sedan, manages around 24 MPG combined. Some larger, more powerful sedans, such as the Dodge Charger with the Hemi V8, have significantly lower fuel economy ratings. This comparison is important because buyers of the 300 often cross-shop these vehicles, weighing fuel economy against factors like style, performance, and interior space. Review 300 MPG across all years to see generational changes in fuel economy.

Tips to maximize efficiency

Use the 300’s adaptive cruise control on highway drives. Maintaining a constant speed not only enhances comfort but contributes to fuel savings. Avoid sudden bursts of acceleration and deceleration to minimize unnecessary fuel consumption.

Ensure your tires are properly inflated. Underinflated tires increase rolling resistance, forcing the engine to work harder and consuming more fuel. Check your tire pressure regularly and inflate them to the recommended levels specified on the tire placard, located on the driver’s side doorjamb.

Minimize idle time. If you’re stopped for more than a minute or two, it’s more fuel-efficient to turn off the engine rather than letting it idle. Modern engines are designed to restart quickly and efficiently, making this a fuel-saving strategy, especially in urban environments.

Lightly press the accelerator. The 3.6L V6 offers ample power, but you don’t always need to use it all. Gentle acceleration and anticipating traffic flow will help you maintain momentum with less throttle input, improving fuel economy.

Keep up with regular maintenance. A well-maintained engine operates more efficiently. Following the manufacturer’s recommended maintenance schedule, including oil changes and filter replacements, ensures that your 300 is running at its optimal fuel efficiency.