The 2024 Genesis G90 AWD with its 3.5L twin-turbo V6 gets 21 MPG combined. This isn’t a vehicle for hypermilers, it’s a statement of success, a rolling sanctuary of leather, wood, and technology. Buyers prioritize quiet power and opulent comfort, accepting the fuel bill as a necessary tax for the experience.

City and highway performance

The EPA estimates 18 MPG in the city and 26 MPG on the highway, reflecting the engine and drivetrain specifications. The twin-turbo V6 delivers effortless acceleration, making short work of city driving but demanding fuel. On the open road, the eight-speed automatic transmission helps keep the engine in its sweet spot for decent, if not exceptional, highway efficiency. The all-wheel-drive system, improving safety and stability, adds weight and complexity, impacting fuel consumption, mainly in city driving.

Annual fuel cost

The EPA estimates the typical G90 owner will spend $2,750 per year on fuel. This is based on driving 15,000 miles annually using the national average fuel price, which changes frequently. Individual driving styles and local fuel prices impact the actual amount spent. Aggressive acceleration, frequent short trips, and persistent idling will all increase that number. A driver with a light foot and consistent highway commutes might see slightly lower costs.

Real-world expectations

While the EPA provides a benchmark, real-world MPG in the 2024 G90 will vary. G90 drivers appreciate immediate power, often using it to confidently merge and overtake. They appreciate a smooth ride, and are less likely to feather the throttle to conserve fuel. Expect to hover around the EPA estimates, but accept that spirited driving will decrease fuel economy, while gentle acceleration and consistent speeds could increase it slightly. Outside temperatures and even tire pressure affect these values.

How it compares

Compared to its competitors, the G90’s fuel economy is in a predictable spot. The BMW 740i, with its inline-six, achieves a slightly better 25 MPG combined, but the Mercedes-Benz S500 4MATIC, with a similar six-cylinder engine, mirrors the G90’s 21 MPG. The Lexus LS 500 AWD lands in the same range. Those considering other flagship luxury sedans should know that fuel savings are usually sacrificed for other luxury features. People choose this vehicle because they value the car’s features over fuel savings. To compare G90 MPG across all years, see our other information.

Tips to maximize efficiency

Use the G90’s drive modes. The “Eco” mode will dull throttle response and optimize shift points, good for relaxed highway cruising or stop-and-go traffic. Switch to “Comfort” or “Sport” when needed, as forcing the engine to strain in Eco mode can decrease efficiency. The right mode for the right conditions is key.

Keep your tires properly inflated. Under-inflated tires increase rolling resistance, forcing the engine to work harder and consume more fuel. Check your tire pressure regularly and maintain the recommended levels specified on the driver’s side doorjamb. Inflating tires ensures optimum fuel efficiency and tire life.

Avoid unnecessary idling. Modern engines don’t require extended warm-up periods. Turn off the engine if you anticipate idling for more than 30 seconds. Idling consumes fuel without adding any mileage, significantly impacting your MPG, especially in city driving.

Consider your driving habits. Smooth acceleration, consistent speeds, and anticipating traffic flow all contribute to better fuel economy. Avoid aggressive braking and excessive speeding, as these actions quickly deplete fuel and negate any potential savings. Also, good driving habits save money on preventative maintenance.

Ensure your G90 receives regular maintenance, including oil changes and air filter replacements. A well-maintained engine runs more efficiently, maximizing fuel economy and extending the lifespan of your vehicle. Explore all Genesis fuel economy data to compare to new models.