19 MPG combined is a tough number to accept in 2024, especially for a luxury sedan. But the 2023 Genesis G80 AWD with the 3.5L twin-turbo V6 isn’t trying to be a fuel-sipping hybrid. It’s a statement car, a challenger to the established German brands, and a comfortable, powerful cruiser built for drivers who prioritize responsiveness and all-weather confidence over maximizing every last drop of fuel.

City and highway performance

The EPA breaks down that 19 MPG figure further, revealing the G80 AWD 3.5T achieves 16 MPG in the city and 25 MPG on the highway. The city number reflects the engine’s inherent thirst and the stop-and-go driving. Meanwhile, the 25 MPG highway rating is more respectable. This is where the eight-speed automatic transmission and the engine’s broad torque curve come into play, allowing for relaxed cruising at higher speeds. It’s not a fuel-sipping marvel, but long road trips are still within the G80’s comfort zone.

Annual fuel cost

According to the EPA, the estimated annual fuel cost for the 2023 Genesis G80 AWD 3.5L is $3,050. This figure is based on driving 15,000 miles per year and using national average fuel prices for premium gasoline, which is what the G80’s engine requires for optimal performance. It’s a significant expense, and a factor potential buyers must consider. This is more about indulgence than saving money.

Real-world expectations

It’s important to understand that the EPA figures are estimates. Real-world fuel economy will vary based on driving style, traffic conditions, climate, and even tire pressure. Drivers who accelerate quickly are likely to see numbers below the EPA’s estimates. Those who maintain their vehicle well and spend more time on the highway might get closer to, or even slightly exceed, the 25 MPG highway rating. But don’t expect hybrid-like efficiency.

How it compares

The G80’s fuel economy places it in the range of other powerful, all-wheel-drive luxury sedans, but certainly not at the top. For example, the BMW 540i xDrive, with its 3.0L inline-six, achieves a combined 25 MPG. The Mercedes-Benz E 450 4MATIC, with its turbocharged inline-six, manages around 24 MPG combined. Audi’s A6 allroad earns 22 MPG combined. Buyers considering the G80 are likely cross-shopping these vehicles, and fuel economy, while important, is often secondary to factors such as styling, features, and driving experience. If better economy is a higher priority, browsing G80 MPG across all years shows that there may be other model years or trims to consider. If one wanted better efficiency within the Genesis family, they could explore all Genesis fuel economy data.

Tips to maximize efficiency

Aggressive acceleration is a fuel economy killer. The G80’s twin-turbo V6 delivers instant power, but resist the urge to constantly unleash it. Gentle acceleration and maintaining a steady speed will make a noticeable difference over the long run.

Pay close attention to tire pressure. Underinflated tires increase rolling resistance, which reduces fuel economy. Check your tire pressure regularly and inflate them to the recommended level, which can be found on a sticker inside the driver’s side doorjamb.

Use cruise control on the highway. Maintaining a consistent speed, especially on long trips, minimizes unnecessary acceleration and deceleration, thereby improving fuel efficiency. The G80’s advanced driver-assistance systems provide adaptive cruise control, which helps maintain a safe following distance and further optimize fuel consumption.

Minimize idling. If you anticipate stopping for more than a minute, turn off the engine. Modern engines are designed to restart quickly, and idling consumes fuel without providing any benefit.

Service your G80 according to the manufacturer’s recommendations. Regular maintenance, including oil changes and air filter replacements, ensures the engine is running well and can improve fuel economy. Following the recommended service schedule can help prevent issues that could negatively impact efficiency.