24 MPG combined isn’t going to win any fuel economy awards, but it’s the price of admission for enjoying the 2017 Cadillac ATS with the strong 3.6L V6. This isn’t a car bought by people focused on lower fuel costs. It’s a car for drivers who appreciate a responsive engine, balanced handling, and the Cadillac brand, drivers who prioritize spirited performance over squeezing every last mile from a gallon of fuel.

City and highway performance

The EPA estimates for the 2017 Cadillac ATS 3.6L place city driving at 20 MPG and highway cruising at 30 MPG. These figures reflect the inherent trade-offs between spirited acceleration and fuel efficiency. The 20 MPG in the city shows the engine’s eager nature and the likelihood that drivers will tap into its power frequently. The 30 MPG highway figure is respectable, demonstrating the engine’s ability to settle into a more efficient rhythm during steady-state cruising. The ATS’s eight-speed automatic transmission certainly aids highway efficiency, selecting the optimal gear to keep the engine at a relatively low RPM.

Annual fuel cost

The EPA calculates the annual fuel cost for the 2017 Cadillac ATS 3.6L at $1,800. This figure is based on driving 15,000 miles per year with a fuel price that reflects national averages. Keep in mind that this number can fluctuate significantly based on individual driving habits, the actual miles driven, and prevailing fuel prices in your region. Aggressive driving, frequent short trips, and using premium fuel (although not required) will all push this annual cost higher.

Real-world expectations

While the EPA estimates provide a useful benchmark, real-world fuel economy depends on many factors. Expect variations based on driving style, traffic conditions, terrain, and even tire pressure. Drivers who prioritize smooth acceleration, anticipate traffic flow, and maintain their vehicle properly are more likely to approach the EPA estimates. Conversely, those who frequently engage in hard acceleration and braking will likely see lower numbers. Also, consider the impact of weather conditions, where colder temperatures can often result in lower MPG figures.

How it compares

The 2017 Cadillac ATS, in general, faced stiff competition from other compact luxury sedans. The BMW 330i (with its turbo four-cylinder) typically achieves noticeably better fuel economy, often in the 28 MPG combined range. The Audi A4 2.0T also performs comparably to the 330i, providing better fuel efficiency. The Lexus IS 350, with its own naturally aspirated V6, delivers similar MPG figures to the ATS 3.6L. For buyers considering the ATS, the decision often comes down to prioritizing the Cadillac’s distinct styling and available performance features over a small improvement in fuel efficiency. You can view all Cadillac fuel economy data here.

Tips to maximize efficiency

The 3.6L V6 responds well to smooth, deliberate inputs. Avoid abrupt acceleration and braking, which can waste fuel unnecessarily. Gentle acceleration allows the engine and transmission to operate more efficiently, maximizing MPG.

Consider using cruise control on the highway, particularly over long distances. Maintaining a consistent speed minimizes unnecessary speed variations, which contribute to fuel consumption. Set it and forget it to reduce the amount of throttle changes.

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 to keep them at the optimal pressure.

Avoid extended idling, particularly during cold weather. Modern engines warm up quickly under normal driving conditions, and prolonged idling simply wastes fuel. If you’re waiting for someone or stopped for an extended period, turning off the engine saves gas.

Regularly service your vehicle, including oil changes and filter replacements. A well-maintained engine operates more efficiently. Following the manufacturer’s recommended maintenance schedule ensures optimal performance and fuel economy; find ATS MPG across all years for further research.