21 MPG combined. That’s the headline for the 2015 Chrysler 300 AWD with the 3.6L V6, and it immediately begs the question: is it good? For the buyer of this generously-sized, all-wheel-drive sedan, the answer is likely “good enough.” These aren’t shoppers prioritizing maximum fuel efficiency above all else. They value the 300’s imposing presence, comfortable interior, and year-round capability, and the mid-pack fuel economy is a compromise they’re willing to make.

City and highway performance

The EPA estimates peg the 2015 Chrysler 300 AWD 3.6L at 18 MPG in the city and 27 MPG on the highway. The city number reflects the realities of stop-and-go traffic, where the weight of the 300 and the need to constantly accelerate take their toll. The highway figure is more respectable. The eight-speed automatic transmission allows the engine to cruise at lower RPMs, maximizing efficiency on long, steady drives. However, expect the highway MPG to drop if you frequently engage in passing maneuvers, as the 3.6L needs to work harder to propel the 300’s mass at higher speeds.

Annual fuel cost

According to the EPA, the estimated annual fuel cost for the 2015 Chrysler 300 AWD 3.6L is $2,100. This figure is based on driving 15,000 miles per year and using national average fuel prices. Keep in mind that your actual fuel costs may vary depending on your driving habits, the type of roads you typically drive on, and the price of gasoline in your area. Someone who primarily drives short distances in heavy city traffic will likely exceed this estimate, while someone who does mostly highway driving could potentially spend less. While a useful point of comparison, consider your own driving conditions carefully when evaluating this expense.

Real-world expectations

While the EPA estimates provide a baseline, drivers find their real-world fuel economy deviates from the official numbers. Some owners report consistently achieving the EPA’s highway figure on long road trips, while others struggle to reach the combined MPG in mixed driving conditions. Factors such as aggressive driving, carrying heavy loads, and neglecting routine maintenance can all negatively affect fuel economy. Checking the 300 MPG across all years can also provide some more insight.

How it compares

The 2015 Chrysler 300 AWD 3.6L’s fuel economy positions it in the middle of its competitive set. Consider its rivals: the all-wheel-drive V6 version of the 2015 Dodge Charger, another large sedan with similar underpinnings, posts nearly identical EPA numbers. The Toyota Avalon XLE, a front-wheel-drive V6 sedan known for prioritizing efficiency, achieves a notably better 25 MPG combined. However, it lacks both the 300’s imposing style and the all-weather confidence of all-wheel drive. Some buyers might cross-shop a used Acura TLX SH-AWD with the V6, which offered slightly improved fuel economy (21 MPG combined) with a more premium badge, although still not as fuel efficient as something like the Lexus ES 350. The appeal of the 300 lies in its unique blend of comfort, capability, and presence at a relatively accessible price point, and its fuel economy reflects the trade-offs made to achieve that balance. Compare all Chrysler fuel economy data to help you make the best decision.

Tips to maximize efficiency

Gentle acceleration is key to maximizing fuel economy in the 300. Avoid sudden bursts of speed and try to maintain a steady pace, especially in city driving. The 3.6L benefits from a light foot.

Maintaining proper tire inflation is critical. Underinflated tires increase rolling resistance, forcing the engine to work harder and consume more fuel. Check your tire pressure regularly and inflate them to the manufacturer’s recommended specifications.

Reduce unnecessary weight. Carrying around extra cargo in the trunk or back seat adds to the vehicle’s overall weight, negatively impacting fuel economy. Remove any items you don’t need on a daily basis.

Regular maintenance, including oil changes and air filter replacements, ensures the engine is running efficiently. A neglected engine will burn more fuel and produce less power. Stick to the manufacturer’s recommended maintenance schedule.

Use cruise control on the highway whenever possible. Maintaining a consistent speed can help optimize fuel economy, especially on long trips. This is where the eight-speed automatic can really shine.