20 MPG combined requires some acceptance of compromise if you’re considering the 2018 Genesis G80 AWD with the 3.3L V6. This isn’t a vehicle purchased for hyper-miling; it’s an executive sedan designed to deliver a refined driving experience, a comfortable ride, and luxury features at a price that undercuts its established German rivals. The all-wheel-drive system and the reliable V6 engine contribute to a confident, sure-footed feel, but those benefits inevitably come with a fuel economy penalty. Buyers in this segment prioritize value, and a distinctive alternative to the usual suspects, understanding that ultimate fuel efficiency isn’t the G80’s primary mission.

City and highway performance

The EPA estimates for the 2018 Genesis G80 AWD 3.3L V6 break down to 17 MPG in the city and 24 MPG on the highway. The lower city MPG reflects the engine’s need to work harder during stop-and-go traffic, using more fuel to accelerate its considerable mass from a standstill. The all-wheel-drive system, while improving traction and handling in various conditions, also adds weight and slightly increases drivetrain loss, contributing to the lower city figure.

Out on the open road, the 24 MPG highway estimate becomes more attainable. The eight-speed automatic transmission can lock up the torque converter and settle into a fuel-saving overdrive gear, allowing the engine to cruise at lower RPMs. However, aggressive passing maneuvers or consistently exceeding posted speed limits will pull those numbers down.

Annual fuel cost

According to the EPA, the estimated annual fuel cost for the 2018 Genesis G80 AWD 3.3L V6 is $2,900. This figure is based on driving 15,000 miles per year and assumes fuel prices that reflect a national average. Keep in mind that the actual cost can vary significantly depending on your driving habits and where you live. If you primarily drive in the city or have a heavy foot, you’ll likely spend more than the EPA’s estimate. Conversely, if you primarily take long highway trips at consistent speeds, you might get closer to or even slightly surpass the EPA’s ratings. The $2,900 figure provides a useful point of comparison when considering other vehicles in the segment.

Real-world expectations

Real-world fuel economy for the 2018 Genesis G80 AWD 3.3L V6 often varies from the EPA estimates, but how much it varies depends on the driver. Drivers with shorter commutes in dense urban areas will likely see numbers closer to or even below the 17 MPG city rating. Owners who frequently travel on the highway and use cruise control effectively may achieve figures closer to, or potentially slightly above, the 24 MPG highway estimate.

Expect the actual combined fuel economy to fluctuate between 18 and 22 MPG, depending on the blend of city and highway driving. Driving style plays a significant role, as aggressive acceleration and hard braking will markedly reduce fuel efficiency. Consistent monitoring of trip computers or fuel-tracking apps will provide a more accurate understanding of your personal fuel consumption patterns.

How it compares

Compared to its competitors, the 2018 Genesis G80 AWD 3.3L V6’s fuel economy falls within the expected range for a mid-size luxury sedan with all-wheel drive. For example, the 2018 BMW 540i xDrive, with its turbocharged inline-six, achieves an EPA-estimated 23 MPG combined. A Mercedes-Benz E300 4MATIC from the same year offers around 25 MPG combined with its turbocharged four-cylinder engine. The G80’s fuel consumption is a tradeoff for its larger engine and available features at a lower price than some of its European rivals. Looking at other options within the Genesis lineup, comparing G80 MPG across all years can reveal trends or improvements across model revisions. Also, examining all Genesis fuel economy data can give you more insight into the brand’s overall efficiency strategy.

Tips to maximize efficiency

Drive smoothly and avoid aggressive acceleration or braking. The G80’s 3.3L V6 delivers ample torque, so there is little need to push the engine hard during everyday driving. Anticipate traffic flow and maintain a consistent speed whenever possible. Gentle acceleration will significantly reduce fuel consumption compared to stomping on the gas pedal.

Ensure your tires are properly inflated to the recommended pressure. Under-inflated tires create more rolling resistance, forcing the engine to work harder and consume more fuel. Check your tire pressure regularly, especially during temperature changes, and inflate them to the specification listed on the driver’s side door jamb.

Minimize idling time. If you anticipate being stopped for more than a minute, turn off the engine. Letting the car idle consumes fuel without covering any distance. Modern vehicles are designed to restart quickly and efficiently, making it easy to avoid unnecessary idling.

Reduce aerodynamic drag by removing unnecessary items from the roof or trunk. Roof racks, cargo carriers, and other accessories increase wind resistance, which reduces fuel efficiency, especially at highway speeds. Keeping the vehicle’s exterior clean and free of obstructions helps optimize its aerodynamic profile.