The 2017 Chevrolet Impala 2.5L 4-cyl achieves an EPA-estimated 25 MPG combined, a figure that won’t set any records but remains perfectly acceptable for this car: a large, comfortable, and affordable sedan. This Impala isn’t chasing hypermiling glory; it’s built to deliver spaciousness and a smooth ride for families and commuters who prioritize value and practicality.

City and highway performance

The EPA breaks down the Impala’s fuel economy, showing 22 MPG in the city and 30 MPG on the highway. The city number reflects stop-and-go driving, where the 2.5L engine works harder to move the Impala’s size. The highway figure is indicative of what you can expect on longer road trips; the engine settles into a more efficient cruising speed, showcasing the 6-speed automatic transmission’s ability to keep the revs low. These numbers show the Impala’s strength as a comfortable highway cruiser that is functional in town.

Annual fuel cost

According to the EPA, the estimated annual fuel cost for the 2017 Chevrolet Impala 2.5L 4-cyl is $1,750. This calculation assumes 15,000 miles of driving per year and uses national average fuel prices. This figure provides a helpful benchmark for budgeting and comparing the Impala’s running costs against other vehicles in its class. Your actual fuel costs will vary based on your driving habits, the type of roads you typically travel, and fluctuations in gas prices.

Real-world expectations

The EPA provides standardized testing, but real-world fuel economy can vary. Many owners report seeing figures close to the EPA estimates, particularly on longer trips. Aggressive driving, frequent short trips, and carrying heavy loads will reduce fuel economy.

Gentle acceleration, consistent speeds, and proper tire inflation can help you achieve or even exceed the EPA numbers. Expect economy in the low-to-mid 20s for mixed driving, and approaching or achieving 30 MPG on long highway stints. The Impala is not a small car, and its size and weight will always have a bearing on its fuel consumption.

How it compares

Several competitors vie for the attention of large sedan buyers, and fuel economy is an important consideration. The Toyota Avalon, for example, often achieves around 24 MPG combined in its base four-cylinder form, like other Chevrolet vehicles. The Nissan Maxima, known for its sporty character, typically returns around 25 MPG combined, on par with the Impala’s figure. A comparable Chrysler 300 with its V6 engine delivers EPA numbers closer to 22 MPG combined. The Impala is not a fuel economy leader, but its MPG ratings are competitive within its class, especially considering its price.

See all Chevrolet fuel economy data for a wider view compared to other Chevrolet models. If you’re considering other years see IMPALA MPG across all years for historical data.

Tips to maximize efficiency

The 2.5L engine in the 2017 Impala responds well to smooth driving techniques. Avoid hard acceleration and braking, as these actions significantly reduce fuel economy. Anticipating traffic flow and maintaining a steady speed will help you get the most out of each gallon of gasoline.

Tire pressure plays a critical role in fuel efficiency. Check your tire pressure regularly, aiming for the recommended PSI found on the sticker inside the driver’s side doorjamb. Underinflated tires increase rolling resistance, forcing the engine to work harder and reducing fuel economy.

Minimize idling. If you expect to be stopped for more than a minute or two, turn off the engine. Modern cars are designed to restart quickly and efficiently; idling wastes fuel without providing any benefit.

Regular maintenance is essential for fuel economy. Ensure that your Impala receives scheduled oil changes, air filter replacements, and spark plug maintenance according to the manufacturer’s recommendations. A well-maintained engine runs efficiently and delivers better fuel economy.

Avoid carrying unnecessary cargo or using a roof rack when not needed. Every extra pound adds weight, forcing the engine to work harder to maintain speed. Removing unnecessary weight and aerodynamic drag improves fuel economy, especially at highway speeds.