| Engine | 2.0L 4-cyl |
| Transmission | Automatic (S8) |
| Drive | All-Wheel Drive |
| Fuel Type | Premium Gasoline |
| Vehicle Class | Compact Cars |
| Engine Desc | SIDI |
| Start-Stop | Yes |
| EPA Vehicle ID | 40409 |
24 MPG combined isn’t going to win any hypermiling awards, but for the 2019 Cadillac ATS AWD 2.0L, it’s an acceptable compromise. This isn’t a fuel-sipping econobox; it’s a compact luxury sedan designed to offer a blend of sporty handling, premium features, and all-weather confidence. Buyers drawn to this particular ATS configuration, the all-wheel drive model with the turbocharged four-cylinder, prioritize those attributes over outright fuel efficiency. They’re willing to trade a few MPGs for the security of AWD and the punchy performance the 2.0L turbo delivers.
City and highway performance
The EPA estimations break down the 24 MPG combined figure into 21 MPG in the city and 29 MPG on the highway. The city figure reflects the reality of stop-and-go traffic, where the ATS’s turbocharger is repeatedly called upon to get the car moving from a standstill. The AWD system also adds weight and frictional losses, subtly impacting urban consumption. The highway MPG, however, proves the ATS can be reasonably efficient when cruising at a consistent speed. The eight-speed automatic transmission plays a role here, keeping the engine in its most efficient operating range.
Annual fuel cost
According to the EPA, the estimated annual fuel cost for the 2019 Cadillac ATS AWD 2.0L is $2,400. This figure is based on driving 15,000 miles per year and using national average fuel prices. Of course, the actual cost will vary depending on individual driving habits, local fuel prices, and the type of fuel used. While the ATS doesn’t explicitly require premium fuel, some owners report slightly improved performance and fuel economy when using it, which would further impact the annual fuel expenditure.
Real-world expectations
While the EPA estimates provide a good baseline, real-world fuel economy will always vary. Aggressive driving, frequent short trips, and cold weather can all negatively impact MPG. Conversely, careful driving and consistent highway cruising can potentially yield figures slightly higher than the EPA estimates. The key to maximizing fuel economy in the ATS is to drive smoothly, anticipate traffic, and avoid unnecessary acceleration. Drivers who spend most of their time in the city and enjoy exploiting the turbo’s power band are likely to see numbers closer to the 21 MPG city estimate.
For those who primarily use the ATS for longer commutes and highway driving, achieving 29 MPG or even slightly better is entirely plausible. Remember to consult resources like ATS MPG across all years to see owner-reported figures.
How it compares
In the realm of compact luxury sedans with all-wheel drive, the 2019 ATS’s fuel economy positions it somewhere in the middle of the pack. A comparable BMW 330i xDrive from the same year achieves around 28 MPG combined, offering slightly better efficiency. However, an Audi A4 Quattro might deliver similar or marginally worse fuel economy depending on the specific configuration and driving style. The Mercedes-Benz C300 4Matic falls into a similar range as the ATS. These differences, while noticeable, are often secondary considerations for buyers in this segment.
They’re more concerned with overall driving experience, features, and brand cachet. Check all Cadillac fuel economy data for a broader comparison.
Tips to maximize efficiency
Take advantage of the ATS’s cruise control system on the highway. Setting a consistent speed minimizes unnecessary acceleration and braking, leading to improved fuel consumption. Maintaining a steady pace, rather than constantly speeding up and slowing down, significantly reduces fuel waste.
Ensure your tires are properly inflated. Underinflated tires create more rolling resistance, forcing the engine to work harder and consume more fuel. Check your tire pressure regularly and inflate them to the recommended level found on the driver’s side doorjamb.
Avoid excessive idling. If you’re stopped for more than a minute, it’s generally more fuel-efficient to turn off the engine. Modern engines are designed to restart quickly and efficiently, so idling for extended periods is simply wasting fuel.
Be mindful of your driving style. Aggressive acceleration and hard braking consume significantly more fuel than smooth, gradual inputs. Anticipate traffic flow and maintain a safe following distance to avoid sudden stops and starts. The ATS’s responsive engine can be tempting, but restraint pays off at the pump.
Reduce unnecessary weight. Carrying extra cargo in the trunk adds weight to the vehicle, which in turn reduces fuel economy. Remove any unnecessary items to lighten the load and improve efficiency. Every little bit helps, especially in city driving.