20 MPG combined is the fuel economy accepted by those who prioritize smooth power, all-weather confidence, and understated luxury. The 2020 Genesis G90 AWD 3.3L isn’t trying to achieve hybrid efficiency or redefine expectations. It offers a specific experience, and that experience has a predictable cost at the pump.

City and highway performance

The EPA estimates the G90’s city fuel economy at 17 MPG and highway consumption at 25 MPG. This difference reflects a common scenario: the city figure is affected by the car’s weight (over 4,800 pounds) and the demands of stop-and-go traffic. The twin-turbocharged 3.3L V6 needs fuel to deliver its 365 horsepower. On the highway, where the engine can settle into a more efficient cruising mode and use its eight-speed automatic transmission, the G90 demonstrates more respectable numbers. This is especially true on long, flat stretches where less throttle is needed to maintain speed. This shows that the G90 rewards a relaxed driving style and benefits from open-road conditions.

Annual fuel cost

The official EPA estimate for annual fuel cost for the 2020 Genesis G90 AWD 3.3L is $2,900. This is based on driving 15,000 miles per year, with 55% of those miles driven in the city and 45% on the highway, using national average fuel prices. This is an estimate. Your actual fuel costs will vary depending on your driving habits, the type of fuel you use, and local fuel prices. Aggressive driving, frequent short trips, and consistently opting for premium fuel will increase your spending. The $2,900 figure provides a baseline for comparison, but personal habits are the biggest factor.

Real-world expectations

The EPA provides a benchmark, but real-world MPG often changes. G90 drivers report a range of experiences, influenced by climate and terrain. If you live in an area with heavy traffic, expect the 17 MPG city figure to hold firm, or even dip slightly. Highway fuel economy closer to the 25 MPG mark is achievable with consistent highway driving, but faster speeds will reduce that number. Most G90 owners know that they are prioritizing luxury and performance over fuel efficiency. They are not expecting Prius-like numbers and are willing to accept the compromise.

How it compares

Compared to its competitors, the 2020 Genesis G90’s fuel economy is in the middle. The Mercedes-Benz S450 4Matic achieves an EPA-estimated 22 MPG combined, which is slightly better due to its smaller engine and more advanced fuel-saving technologies. The BMW 740i xDrive mirrors the G90’s 20 MPG combined, suggesting a similar balance of power and efficiency. The Lexus LS 500 AWD offers 21 MPG combined.

The G90 has a good value; it delivers comparable luxury and performance at a lower price point, which can help offset the lower fuel economy. The plug-in hybrid versions of the BMW 7 Series and Mercedes-Benz S-Class offer better figures for those seeking the best MPG, but at a higher initial cost and with trunk space compromises. Compare G90 MPG across all years.

Tips to maximize efficiency

Gentle acceleration is key. The G90’s twin-turbo V6 delivers ample torque, so there’s no need to apply the throttle aggressively. Smooth acceleration conserves fuel and keeps the engine operating efficiently. Avoid quick starts and anticipate traffic flow to reduce the need for sudden power.

Use cruise control on the highway. Maintaining speed minimizes changes in engine RPM and fuel consumption. The G90’s adaptive cruise control system can enhance efficiency by adjusting speed to maintain a safe following distance, preventing harsh braking and acceleration.

Ensure your tires are properly inflated. Tires that don’t have enough air increase rolling resistance, forcing the engine to work harder. Check your tire pressure regularly and maintain the recommended pressure listed on the doorjamb sticker. This can have a good impact on efficiency.

Minimize idling. Letting the engine run while stopped consumes fuel. If you are stopped for more than a minute, turn off the engine. The G90’s interior and climate control system will maintain a pleasant environment.

Keep up with scheduled maintenance. Regular oil changes, air filter replacements, and tune ups ensure that the engine is operating efficiently. A well-maintained engine consumes less fuel. Consult your owner’s manual for the recommended maintenance schedule for your G90 which is available with all Genesis fuel economy data.