22 MPG combined is respectable, if not class-leading, for the 2017 Genesis G80 RWD 3.8L. This is a comfortable, mid-size luxury sedan with a smooth 311-horsepower V6 driving the rear wheels. Fuel economy isn’t the primary concern for buyers of this car; they want space, a compliant ride, and an understated elegance that avoids the flashiness of some European competitors.

City and highway performance

The EPA estimates for the 2017 G80 3.8L provide a clear picture of its driving characteristics. The 18 MPG city figure reflects the engine’s need to work a bit harder in stop-and-go traffic, particularly given the car’s near-4,200-pound curb weight. Out on the open road, the 28 MPG highway number demonstrates the effectiveness of the eight-speed automatic transmission (S8) in maximizing efficiency at cruising speeds. The transmission’s taller gears allow the engine to settle into a relaxed state, minimizing fuel consumption during long highway hauls.

Drivers who frequently commute in dense urban environments will likely see economy numbers that are closer to the city rating, while those who spend most of their time on interstates can expect to achieve results closer to the highway figure.

Annual fuel cost

The EPA estimates that the annual fuel cost for the 2017 Genesis G80 RWD 3.8L will be approximately $2,000. This figure is based on driving 15,000 miles per year, with a mix of city and highway driving, and using national average fuel prices. Your individual fuel costs will vary depending on your driving habits and the price of gasoline in your area. However, the $2,000 estimate provides a good benchmark for comparison against other vehicles in its class. You can explore G80 MPG across all years on our site.

Real-world expectations

While the EPA estimates provide a useful baseline, real-world fuel economy often differs. The G80’s 3.8L engine is generally responsive, but drivers who enjoy spirited acceleration or frequently make short trips may find their fuel economy falling slightly below the EPA estimates. Conversely, those who adopt a more relaxed driving style and prioritize smooth acceleration may find they meet or even exceed the EPA’s figures. Factors such as tire pressure, vehicle maintenance, and even the type of gasoline used can also influence fuel economy. The driving mode selected can have an impact. “Eco” mode noticeably dulls throttle response in the interest of fuel conservation.

How it compares

The 2017 G80’s fuel economy places it roughly in the middle of its competitive set. For example, the BMW 530i (2.0L turbo) achieves a notably better 27 MPG combined, while the Mercedes-Benz E300 is rated at 25 MPG combined. However, stepping up to the 540i’s six-cylinder engine brings its combined MPG down closer to the G80. Meanwhile, the Cadillac CTS 2.0T matches the G80’s 22 MPG combined. For buyers prioritizing fuel efficiency above all else, the G80 might not be the top choice. However, it offers a well-equipped luxury experience at a price point that often undercuts its rivals. You can find all Genesis fuel economy data here.

Tips to maximize efficiency

Smooth and steady wins the race, especially when it comes to fuel economy. The G80’s eight-speed transmission is designed to shift smoothly and efficiently, so avoid aggressive acceleration and hard braking whenever possible. Anticipate traffic flow and maintain a consistent speed to minimize unnecessary gear changes and wasted fuel.

Proper tire inflation plays a critical role in fuel efficiency. Check your tire pressure regularly, ideally when the tires are cold, and inflate them to the recommended pressure listed on the doorjamb sticker. Underinflated tires increase rolling resistance, which reduces fuel economy and can also lead to premature tire wear.

Reduce unnecessary weight in the vehicle. Carrying around extra cargo in the trunk or backseat adds weight, which forces the engine to work harder and consume more fuel. Remove any items you don’t need on a regular basis to improve fuel efficiency, and avoid rooftop cargo carriers if possible.

Consider using the G80’s “Eco” driving mode when appropriate. While it may slightly dampen throttle response, it optimizes engine and transmission settings for maximum fuel efficiency. This mode is particularly useful for highway driving or when cruising at a steady speed.