25 MPG combined is a reality check for anyone cross-shopping the 2017 Cadillac ATS AWD 2.0L 4-cyl. It’s not a Prius, but a compact luxury sedan designed to deliver a spirited driving experience, even with all-wheel drive. This car is for those who value luxury, technology, and confident handling in all weather conditions, and who are willing to accept middling fuel economy as part of the deal.

City and highway performance

The EPA estimates for the 2017 ATS AWD with the 2.0L turbo engine are 22 MPG in the city and 30 MPG on the highway. The city figure reflects the engine’s responsiveness in stop-and-go traffic, but also its eagerness to burn fuel when accelerating. The highway rating is more respectable, highlighting the efficiency of the eight-speed automatic transmission in maintaining lower engine speeds at cruising speeds. However, pushing the car hard to overtake or maintain higher speeds will quickly diminish those highway gains, which happens with any turbocharged engine. The ATS is eager to run, and that can cost you at the pump.

For drivers who do a lot of short trips, the fuel economy will likely be closer to the city figure, whereas those with longer commutes may see closer to the highway figure. But remember, this is just an estimate; your mileage will vary.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2017 Cadillac ATS AWD 2.0L 4-cyl at $2,300. This figure is based on driving 15,000 miles per year and assumes national average fuel prices. It’s a useful benchmark for comparing the ATS to other vehicles, but it’s important to remember that your actual fuel costs will depend on your driving habits, the type of fuel you use, and local fuel prices. Someone who drives predominantly in the city and enjoys spirited acceleration will likely exceed this figure, while someone who primarily drives on the highway at steady speeds may come in under it.

Real-world expectations

While the EPA figures provide a good starting point, real-world fuel economy often differs. Owners of the 2017 ATS AWD 2.0L typically report MPG numbers that are close to the EPA estimates, but often slightly lower. This is influenced by factors such as driving style, tire pressure, and the use of accessories like air conditioning. Aggressive acceleration, frequent braking, and extended idling can all negatively impact fuel economy. However, smooth driving and proper maintenance can help you achieve or even exceed the EPA estimates. Keep in mind that premium fuel is recommended for optimal performance, and using lower-grade fuel may further decrease fuel economy.

How it compares

Fuel economy isn’t a leading purchasing factor for most ATS buyers, but having context is important. The BMW 320i xDrive, a direct competitor with a similar mission, achieves an EPA-estimated 28 MPG combined, giving it a slight advantage. The Audi A4 quattro with its 2.0T engine gets 27 MPG combined. Even the Lexus IS 200t AWD offers a similar 24 MPG combined, proving that this class values performance traits over ultimate economy. Those prioritizing fuel efficiency within the segment might consider the Acura ILX, but that car offers a completely different driving experience. If fuel economy is critical, buyers should explore non-luxury options or consider hybrid vehicles altogether. For access to all Cadillac fuel economy data, follow that link.

Tips to maximize efficiency

Take advantage of the ATS’s driving mode selector. The “Tour” mode prioritizes fuel efficiency by optimizing throttle response and shift points. While “Sport” mode dials up the fun, it also consumes more fuel. Selecting the appropriate mode for your driving conditions can make a tangible difference.

Ensure your tires are properly inflated. Underinflated tires increase rolling resistance, forcing the engine to work harder and reducing fuel economy. Check your tire pressure regularly and inflate to the recommended levels found on the doorjamb sticker. The difference of even a few PSI can add up over time.

Avoid aggressive driving habits. Quick acceleration and hard braking waste fuel. Smooth, gradual acceleration and anticipating traffic flow can significantly improve your MPG. Pretend you have an egg between your foot and the accelerator pedal, and drive with as little drama as possible.

Keep your vehicle well-maintained. Regular oil changes, air filter replacements, and spark plug maintenance ensure your engine is running efficiently. A neglected engine works harder and consumes more fuel. It can also help to see ATS MPG across all years to get a sense of any gains made by different model years on this same platform.

Minimize idling. Idling consumes fuel without covering any distance. If you’re stopped for more than a minute or two, turn off the engine. Modern engines are designed to restart quickly and efficiently, so you won’t cause any undue wear and tear.