25 MPG combined is a reasonable fuel economy figure for the 2015 Chevrolet Impala 2.5L, but it is not the main reason people buy this car. Impala buyers prioritize a smooth ride, spacious interior, and traditional full-size sedan comfort over fuel savings. This generation Impala offers a lot of metal for the money, and the 2.5L engine provides acceptable, if not thrilling, performance for drivers who primarily use the car for commuting and family duties.

City and highway performance

The EPA estimates that the 2015 Chevrolet Impala 2.5L will achieve 22 MPG in the city and 31 MPG on the highway. These numbers reflect the engine’s tuning for low-end torque rather than high-revving power. The six-speed automatic transmission also plays a crucial role, offering smooth shifts that contribute to both comfort and efficiency. The highway figure, in particular, is respectable for a car of this size, making it a decent choice for longer road trips, as long as you aren’t expecting sports-car acceleration.

Annual fuel cost

According to the EPA, the estimated annual fuel cost for the 2015 Chevrolet Impala 2.5L is $1,750. This calculation assumes 15,000 miles of driving per year, with a mix of city and highway miles, using national average fuel prices. Your actual fuel costs may vary depending on your driving habits, the type of roads you typically drive on, and gasoline prices. This $1,750 figure provides a solid benchmark to compare against other vehicles and to gauge your potential running costs.

Real-world expectations

While the EPA estimates offer a standardized benchmark, real-world fuel economy often differs. Impala owners who spend a significant amount of time in stop-and-go traffic, or who frequently accelerate hard, might see numbers closer to the low end of the EPA range. Drivers who prioritize smooth acceleration, maintain a consistent highway speed, and avoid excessive idling could potentially exceed the EPA’s highway estimate. The 2.5L engine works best when driven smoothly and deliberately, not aggressively. Considering this, drivers can see around 23-27 MPG in combined driving.

How it compares

The 2015 Chevrolet Impala 2.5L exists in a competitive segment, and its fuel economy stacks up reasonably well against its rivals. The Toyota Avalon, another popular full-size sedan, achieves an EPA-estimated 21 MPG city and 31 MPG highway with its V6 engine. The Nissan Maxima, known for its sporty character, delivers around 22 MPG city and 30 MPG highway. The Chrysler 300 with its base V6 lands at around 19 MPG city and 31 MPG highway.

These figures highlight that the Impala’s 2.5L offers efficiency roughly on par with, or slightly better than, some V6-powered competitors, though obviously with less outright power. For buyers prioritizing all Chevrolet fuel economy data, this Impala is a compromise between size and efficiency. Don’t forget to compare IMPALA MPG across all years.

Tips to maximize efficiency

The 2015 Chevrolet Impala’s 2.5L engine responds well to gentle driving habits. Avoid aggressive acceleration and hard braking, as these actions consume more fuel. Smooth, consistent driving allows the six-speed automatic transmission to operate efficiently, keeping the engine in its most economical RPM range. Watch the road ahead and anticipate traffic flow to maximize fuel economy.

Regular maintenance also plays an important role in keeping your Impala running efficiently. Ensure that your tires are properly inflated to the recommended pressure, as underinflated tires increase rolling resistance and reduce fuel economy. Keeping up with scheduled oil changes and other routine maintenance tasks will keep your engine running smoothly and efficiently, preventing any unnecessary fuel consumption.

Reduce unnecessary weight in the vehicle. Carrying around heavy items in the trunk or rear seats adds to the vehicle’s overall weight, requiring the engine to work harder and consume more fuel. Remove any items that you don’t need to carry on a regular basis to improve fuel economy. This is relevant for a large sedan like the Impala, where it’s easy to accumulate clutter.

Limit idling. Excessive idling wastes fuel and contributes to unnecessary emissions. If you’re stopped for more than a minute, turn off the engine to conserve fuel. Modern cars, including the 2015 Impala, are equipped with starter motors that can handle frequent starts and stops without causing significant wear and tear.

Consider using cruise control on the highway (when safe and legal). Maintaining a consistent speed helps to optimize fuel economy, especially on long highway drives. Cruise control minimizes fluctuations in speed, preventing the engine from working harder than it needs to. However, be mindful of using cruise control in hilly terrain or heavy traffic, where it may not be as effective.