The 2016 Cadillac ATS with the 3.6L V6 achieves a combined fuel economy figure of 24 MPG, a number that might seem unremarkable, but it’s perfectly acceptable considering the car’s quickness, sharp handling and rear- or all-wheel-drive configuration paired with a charismatic engine. This isn’t a hybrid or some hyper-efficient commuter car; it’s a driver’s car prioritizing a balance between performance and reasonable running costs. Buyers of this particular ATS configuration aren’t solely focused on squeezing every last mile from a gallon of gasoline; they appreciate the responsive engine and Cadillac’s attempt at challenging the established German players in the segment.

City and highway performance

The EPA estimates the 2016 ATS 3.6L will achieve 20 MPG in the city and 29 MPG on the highway. The city figure reflects the reality of stop-and-go traffic, where the engine spends more time idling or under acceleration. The highway number demonstrates the engine’s relative efficiency at a constant speed, benefiting from the smooth-shifting eight-speed automatic transmission. While 29 MPG isn’t class-leading, it’s achievable on long road trips if you resist the temptation to frequently dip into the engine’s power reserves. Remember that these figures are based on standardized testing; your own mileage will vary based on driving style, traffic conditions, and vehicle maintenance.

Annual fuel cost

The EPA estimates that the annual fuel cost for the 2016 Cadillac ATS 3.6L is $1,800. This figure is calculated based on driving 15,000 miles per year, using the national average fuel price when the estimate was generated. Keep in mind that fuel prices fluctuate, and your actual annual cost will depend on how much you drive and the prevailing prices in your area. Drivers who commute long distances or frequently engage in spirited driving should realistically expect to spend more on fuel than the EPA estimate suggests. While this cost is a factor, it’s likely not the primary concern for those drawn to the 3.6L V6 over the more fuel-efficient 2.0L turbocharged four-cylinder option. You can view all Cadillac fuel economy data on our website.

Real-world expectations

While the EPA provides a standardized benchmark, real-world fuel economy often deviates from the official figures. Owners of the 2016 ATS 3.6L report combined fuel economy figures ranging from 21 to 26 MPG, depending on driving conditions. Aggressive driving habits will skew the numbers toward the lower end, while drivers who prioritize fuel efficiency and spend more time on the highway can expect to achieve figures closer to, or even slightly above, the EPA’s 29 MPG estimate. Online forums and fuel tracking apps offer valuable insights into the experiences of other ATS 3.6L owners, providing a more nuanced understanding of what to expect in everyday driving.

How it compares

The fuel economy of the 2016 Cadillac ATS 3.6L falls roughly in the middle of its competitive set. For instance, the BMW 340i from the same year, with its turbocharged inline-six, achieves a slightly better EPA combined rating of 25 MPG. However, the Mercedes-Benz C300 (turbo four-cylinder) boasts a more impressive 28 MPG combined. The Audi A4 2.0T Quattro achieves 25 MPG combined. These figures matter to the ATS buyer because while they want a fun-to-drive car with a powerful engine, they are also conscious of overall running costs. The ATS offered a sweet spot for those prioritizing the naturally aspirated V6 experience, something that is becoming increasingly rare, rather than chasing ultimate fuel efficiency.

Tips to maximize efficiency

The 2016 Cadillac ATS 3.6L benefits from smooth, gradual acceleration. Avoid aggressive starts and hard braking, as these actions significantly reduce fuel economy. Treat the throttle with respect; use only the amount of power needed for the situation at hand. The V6 is responsive, so gently coaxing it, rather than flooring it, yields better results.

Ensure your ATS is properly maintained. Regular oil changes, tire pressure checks, and air filter replacements contribute to optimal engine performance and fuel efficiency. Underinflated tires create rolling resistance, forcing the engine to work harder and consume more fuel. A clean air filter ensures unrestricted airflow to the engine, maximizing combustion efficiency.

Take advantage of the ATS’s cruise control on the highway. Maintaining a consistent speed minimizes unnecessary speed fluctuations, helping to improve fuel economy. However, be mindful of terrain changes; using cruise control in hilly areas can sometimes reduce efficiency as the transmission shifts to maintain the set speed.

Reduce unnecessary weight in the vehicle. Excess cargo adds strain to the engine, lowering fuel economy. Remove any items from the trunk or backseat that are not essential for your daily driving. Every extra pound counts when it comes to maximizing efficiency. View more ATS MPG across all years here.

Plan your routes strategically. Opt for routes with fewer stoplights and less traffic congestion whenever possible. Idling in traffic consumes fuel without covering any distance. Smart route planning can significantly improve your overall fuel economy.