22 MPG combined isn’t winning any fuel economy contests, but it’s a perfectly acceptable figure for the 2017 Cadillac ATS AWD equipped with the 3.6L V6. This ATS variant isn’t about hypermiling; it’s about confident all-weather performance and a refined driving experience in a relatively compact luxury package. Buyers opting for this particular configuration prioritize sure-footedness and the smooth power delivery of the V6 over squeezing every last drop out of a gallon of premium fuel.

City and highway performance

The EPA estimates for the 2017 Cadillac ATS AWD 3.6L break down to 19 MPG in the city and 27 MPG on the highway. The city figure reflects the engine’s responsiveness in stop-and-go traffic, but also highlights the fuel consumption that comes with moving a vehicle of this weight using a V6. The highway number showcases the ATS’s ability to cruise efficiently when speeds are consistent. The eight-speed automatic transmission helps optimize fuel economy at higher speeds, keeping the engine at a relatively low RPM, though the permanent all-wheel-drive system will always exact some efficiency penalty.

Annual fuel cost

According to the EPA, the annual fuel cost for this ATS configuration is precisely $2,000. This figure is based on driving 15,000 miles per year and using national average fuel prices. Remember that your actual fuel expenses will fluctuate based on your individual driving habits, the type of driving you do (city vs. highway), and the ever-changing prices at the pump. More aggressive driving or predominantly city commuting will likely push this annual cost higher, while more conservative driving and consistent highway miles could bring it down slightly. But as a benchmark, $2,000 is the EPA’s estimate.

Real-world expectations

While the EPA provides a standardized benchmark, expect some variance in real-world conditions. Drivers who frequently use the V6’s power for quick acceleration or who often find themselves in heavy traffic will likely see numbers below 22 MPG. Alternatively, those who prioritize smooth, steady driving, and limit their time in congested areas, could potentially match or slightly exceed the EPA estimates. Tire pressure, vehicle maintenance, and even the type of fuel used can also subtly impact fuel economy. Owners should also be mindful that winter driving conditions, with cold starts and increased drivetrain load, can noticeably decrease MPG.

How it compares

Compared to its rivals, the 2017 ATS AWD 3.6L lands in a competitive, but not class-leading, position. For instance, the BMW 340i xDrive, with its turbocharged inline-six, posts EPA numbers of 22 MPG combined, mirroring the ATS. The Mercedes-Benz C300 4MATIC, with its turbocharged four-cylinder, achieves a slightly better 25 MPG combined, highlighting the efficiency of modern turbocharged engines. However, some buyers are willing to trade a few MPGs for the naturally aspirated V6’s responsiveness and distinctive character. You can find all Cadillac fuel economy data on our site. And for detail on this car across model years, check out ATS MPG across all years .

Tips to maximize efficiency

Avoid aggressive acceleration. The 3.6L V6 in the ATS is eager to respond, but each hard launch and rapid burst of speed burns through fuel unnecessarily. Gentle acceleration and maintaining a steady pace will significantly improve your MPG. Anticipate traffic flow and avoid sudden braking, maintaining momentum whenever possible.

Ensure your tires are properly inflated. 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, which can be found on a sticker in the driver’s side doorjamb, not the maximum pressure printed on the tire itself.

Minimize idling. Letting the engine idle for extended periods is essentially getting zero MPG. If you’re stopped for more than a minute or two, turn off the engine. Modern starters are designed for frequent use, and restarting the car consumes less fuel than idling.

Use cruise control on the highway. Cruise control helps maintain a consistent speed, reducing unnecessary fluctuations in throttle position and improving fuel efficiency. But be mindful of road conditions and traffic flow, and disengage cruise control when necessary for safety.

Keep up with routine maintenance. Regular oil changes, air filter replacements, and spark plug maintenance ensure that the engine is running at peak efficiency. A well-maintained engine consumes less fuel than one that is neglected. Consult your owner’s manual for the recommended maintenance schedule.