A combined fuel economy figure of 24 MPG from the 2018 Buick Regal AWD 2.0L won’t break any records, but it’s not bad for this car: a comfortable, Euro-engineered sedan (or Sportback/TourX wagon) with the confidence of all-wheel drive. This Regal isn’t trying for hypermiling; it’s delivering a composed driving experience and a touch of luxury to buyers who value a quiet cabin and confident handling over fuel efficiency. These buyers often want the surefootedness of AWD, especially in areas with bad weather.

City and highway performance

The EPA estimates the 2018 Buick Regal AWD 2.0L gets 21 MPG in the city and 29 MPG on the highway. The city figure reflects stop-and-go traffic, which makes the turbocharged engine work harder. The highway number is better, showing the Regal’s ability to cruise comfortably at high speeds. The eight-speed automatic transmission helps here, keeping the engine in its best range for performance and efficiency when possible.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2018 Buick Regal AWD 2.0L at $2,400. This is based on driving 15,000 miles per year, with a 55/45 split between city and highway driving, using the EPA’s average national fuel prices. Actual costs will vary depending on driving habits, local fuel prices, and the type of fuel used. Budget-conscious buyers might want to think about this in their own situation, but it’s an acceptable cost for Regal’s comfort, features, and all-weather capability for most. You can also view all all Buick fuel economy data on our site.

Real-world expectations

EPA estimates are a baseline, but real-world fuel economy often differs. Owners who drive in heavy traffic, accelerate quickly, or carry heavy loads may see lower MPG than the EPA estimates. However, those who accelerate smoothly, anticipate traffic, and maintain consistent speeds on the highway could get fuel economy close to, or even above, the 29 MPG highway figure. Ambient temperature, tire pressure, and wind can matter.

How it compares

The 2018 Buick Regal AWD 2.0L is in a competitive class. Comparing its fuel economy to similar AWD vehicles is important. The Subaru Legacy 2.5i with standard all-wheel drive gets a combined 29 MPG. The Acura TLX 2.4L with front-wheel drive gets 27 MPG combined, but Acura’s SH-AWD lowers that. A Mazda 6 with its 2.5T engine delivers around 26 MPG combined. Knowing these numbers helps Regal shoppers decide if the Buick’s features and driving are worth the fuel economy trade-off. You can review REGAL MPG across all years to see how this model compares.

Tips to maximize efficiency

Use the Regal’s Eco driving mode, which changes the throttle response and transmission shift points for best fuel efficiency. This might slightly reduce performance, but it can help reduce fuel consumption, especially in city driving. Use this mode during your daily commute to save fuel.

Make sure your tires are properly inflated. Underinflated tires increase rolling resistance, which makes the engine work harder and use more fuel. Check your tire pressure regularly, at least once a month, and keep the pressure at the recommended level on the tire placard or in the owner’s manual. Even a few PSI below the recommendation can affect fuel economy.

Avoid aggressive driving. Quick acceleration and hard braking waste fuel. Smooth acceleration and anticipating traffic let the engine run more efficiently. Avoid unnecessary idling; if you’ll be stopped for more than a minute, it’s more fuel-efficient to turn off the engine.

Regular maintenance is important. A well-maintained engine runs more efficiently. Follow the manufacturer’s service schedule, including regular oil changes, air filter replacements, and spark plug checks. Fix any engine issues quickly to prevent them from hurting fuel economy.