The 2017 Cadillac ATS 2.5L’s combined EPA rating of 26 MPG shows it prioritizes luxury and driving experience over low fuel consumption. This isn’t a Prius competitor, and it doesn’t try to be. Instead, it’s aimed at drivers seeking a refined, comfortable, and stylish compact sedan who are willing to accept middle-of-the-road fuel consumption as a trade-off for the Cadillac experience. These buyers appreciate the ATS’s nimble handling, attractive design, and premium features, and for whom fuel efficiency is a secondary, but still relevant, consideration.

City and highway performance

Breaking down the 26 MPG combined figure, the 2017 Cadillac ATS 2.5L gets an EPA-estimated 22 MPG in the city and 32 MPG on the highway. The city figure reflects stop-and-go traffic, where the 2.5L engine can struggle a bit, and the eight-speed automatic transmission is constantly shifting to manage power delivery. The highway number is more respectable and shows the car’s comfortable cruising ability. At steady speeds, the engine runs easily, allowing for decent fuel economy on longer trips. Buyers who primarily drive in urban environments will likely see numbers closer to the 22 MPG estimate, while those with longer commutes and more highway miles can expect to see figures approaching, or even slightly exceeding, the 32 MPG mark.

Annual fuel cost

According to the EPA, the estimated annual fuel cost for the 2017 Cadillac ATS 2.5L is $1,700. This is based on driving 15,000 miles per year and using national average fuel prices. Remember that this is just an estimate. Your actual fuel costs will vary depending on your driving habits, the type of fuel you use, and local fuel prices. Aggressive driving, frequent short trips, and premium fuel (though not required) can all increase your annual fuel expenses. However, $1,700 provides a helpful benchmark when comparing the ATS 2.5L to other vehicles in its class. This amount reflects average driving habits and average fuel costs, potentially higher or lower than your expectations depending on how you drive.

Real-world expectations

While the EPA estimates provide a good starting point, real-world fuel economy often differs. Many factors can influence your MPG, including driving style, weather conditions, tire pressure, and vehicle maintenance. Owners reporting their experiences suggest that achieving the EPA’s combined 26 MPG is realistic with a blend of city and highway driving. However, aggressive acceleration and frequent short trips will inevitably lower that number. Conversely, consistent highway driving at moderate speeds can yield results that surpass the EPA’s 32 MPG estimate. Maintaining proper tire inflation, performing regular maintenance, and adopting a smoother driving style can all help improve fuel economy.

How it compares

In the competitive compact luxury sedan segment, the 2017 Cadillac ATS 2.5L’s fuel economy is adequate, but not class-leading. For example, the BMW 320i, with its 2.0-liter turbocharged engine, achieves a slightly better 28 MPG combined. The Acura ILX, with its smaller 2.4-liter engine, also edges out the ATS with a 29 MPG combined rating. Even the Audi A4 2.0T manages 27 MPG combined despite having more power. These comparisons matter to the ATS buyer, as they are likely cross-shopping these other luxury brands. These alternative models offer advantages in fuel efficiency for buyers who prioritize that characteristic. You can review ATS MPG across all years to see how this model has performed over time.

Tips to maximize efficiency

Drive smoothly and avoid aggressive acceleration. The ATS 2.5L’s engine responds better to gentle inputs, and excessive throttle use will significantly impact your fuel economy. Anticipate traffic flow and maintain a consistent speed whenever possible. Smooth driving helps increase efficiency.

Ensure your tires are properly inflated. Underinflated tires create more rolling resistance, which reduces fuel economy. Check your tire pressure regularly and inflate them to the recommended level found on the sticker inside the driver’s side door. Properly inflated tires also improve handling and extend tire life.

Minimize idling time. Avoid letting the engine idle for extended periods, as this burns fuel without covering any distance. If you’re stopped for more than a minute, it’s generally more fuel-efficient to turn off the engine. This is particularly relevant in urban environments where idling is common.

Use cruise control on the highway. Cruise control helps maintain a consistent speed, which optimizes fuel economy on long trips. Set it to a reasonable speed and let the car manage the throttle. This also helps reduce driver fatigue on longer trips.

Keep your vehicle properly maintained. Regular maintenance, such as oil changes and filter replacements, ensures that your engine is running efficiently. Check your owner’s manual for the recommended maintenance schedule and stick to it. You can review all Cadillac fuel economy data to study maintenance impacts on fuel expectations.