The 2019 Genesis G80 RWD with the 3.8-liter V6 gets 21 MPG combined. It’s not going to win any green awards, but it’s a figure that many buyers in the mid-size luxury sedan segment find acceptable for the G80’s styling, refined ride, and generous list of standard features. This G80 isn’t about hyper-efficiency; it’s about providing a comfortable and stylish alternative to the more established German and Japanese brands, at a competitive price.

City and highway performance

The EPA estimates the 2019 Genesis G80 RWD 3.8L at 18 MPG in the city and 26 MPG on the highway. The difference between these numbers tells a story. The G80, while capable on twisty roads, is clearly designed for comfortable cruising. Its long wheelbase and well-damped suspension excel on the open road, which is reflected in the higher highway fuel economy rating. The 3.8-liter V6, while not the most technologically advanced engine in its class, delivers smooth and predictable power, making it well-suited for relaxed highway driving. In city driving, stop-and-go traffic takes a toll, as it does on any conventionally powered vehicle, bringing the MPG down considerably.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2019 Genesis G80 RWD 3.8L at $2,100. This figure is based on driving 15,000 miles per year, with 45% of those miles driven in the city and 55% on the highway, using the national average fuel price at the time of calculation. Remember that this is just an estimate, and your actual fuel costs will vary depending on your driving habits, the type of fuel you use, and where you live, fuel prices vary significantly from state to state. However, $2,100 gives you a benchmark to compare the G80 to other vehicles you might be considering. You can browse G80 MPG across all years here.

Real-world expectations

While the EPA figures offer a standardized comparison tool, real-world MPG can differ significantly depending on driving style, traffic conditions, and maintenance. Owners who drive primarily in urban areas with heavy congestion will likely see fuel economy closer to, or even below, the 18 MPG city rating. Conversely, drivers who spend most of their time on the highway, maintaining consistent speeds, may be able to achieve or even slightly exceed the 26 MPG highway estimate. Aggressive acceleration and frequent hard braking will negatively impact fuel economy.

Regular maintenance, including tire inflation and air filter replacement, is essential to maintaining optimal MPG. A lead foot can easily push your annual fuel bill well above the EPA’s estimated $2,100.

How it compares

The fuel economy of the 2019 Genesis G80 RWD 3.8L places it mid-pack in its class. A 2019 Lexus GS 350 RWD achieves a slightly better 23 MPG combined. A BMW 530i, with its turbocharged four-cylinder engine, boasts 27 MPG combined. However, some competitors fare much worse. The V8-powered Genesis G80 5.0L gets just 19 MPG combined. For some buyers, the G80’s blend of features and value outweighs a slight disadvantage in fuel economy compared to more efficient competitors. Those specifically seeking exceptional fuel efficiency will likely find the G80 less appealing than its more frugal rivals. Explore all Genesis fuel economy data.

Tips to maximize efficiency

Gentle acceleration is key to maximizing fuel economy in the G80. The 3.8-liter V6 is responsive, but unnecessary bursts of speed will quickly drain the fuel tank. Try to anticipate traffic flow and maintain a steady speed whenever possible.

Proper tire inflation is critical. Check your tire pressure regularly and ensure it matches the recommended pressure listed on the sticker inside the driver’s side door. Underinflated tires increase rolling resistance, which lowers fuel economy.

Avoid carrying unnecessary weight in the vehicle. Excess cargo adds to the vehicle’s load, requiring more energy to accelerate and maintain speed. Clean out any unnecessary items from the trunk and passenger compartment.

Use cruise control on the highway. Maintaining a constant speed using cruise control minimizes fluctuations in throttle input, resulting in better fuel efficiency. Just remember to stay attentive and disengage cruise control in heavy traffic or bad weather.

Keep up with regular maintenance. A well-maintained engine runs more efficiently. Follow the manufacturer’s recommended service schedule, including oil changes, air filter replacements, and spark plug inspections.