20 MPG combined won’t win any hypermiling competitions, but for the 2019 Genesis G80 RWD with the 3.3L V6, it’s an acceptable compromise for the driving experience. This isn’t a car bought to maximize every last drop of gasoline. It’s a car that values a blend of luxury, performance, and value, and understands that a naturally aspirated six-cylinder engine delivering smooth power comes with a predictable fuel consumption.

City and highway performance

The EPA numbers for the 2019 Genesis G80 RWD 3.3L are: 17 MPG in the city and 25 MPG on the highway. The city figure reflects the G80’s weight and the inherent inefficiency of stop-and-go driving.

The 25 MPG highway figure is respectable, benefitting from the eight-speed automatic transmission and the engine’s ability to cruise comfortably at lower RPMs. However, drivers with a heavy foot will find that the engine’s responsiveness can quickly reduce those highway savings. Smooth, deliberate acceleration and anticipatory driving are key, allowing momentum to carry you as much as possible.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2019 Genesis G80 RWD 3.3L at $2,900. This figure 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. Individual fuel costs will vary depending on driving habits and local fuel prices. This $2,900 figure provides a standardized benchmark for comparing the G80’s fuel consumption against other vehicles. It’s a data point for prospective buyers to consider, allowing them to assess the long-term cost of ownership alongside factors like purchase price, insurance, and maintenance.

Real-world expectations

EPA figures provide a standardized estimate, but real-world fuel economy for the G80 can vary. Aggressive driving, frequent short trips, and extended idling will impact fuel consumption. Drivers who prioritize smooth acceleration, maintain consistent speeds on the highway, and properly maintain their vehicle can often achieve results closer to, or even slightly exceeding, the EPA estimates.

Tire pressure plays a role, so ensure your tires are inflated to the recommended pressure to minimize rolling resistance and maximize fuel efficiency. G80 MPG across all years suggests similar trends for the 3.3L V6.

How it compares

In the mid-size luxury sedan segment, the G80’s fuel economy is in the middle. The BMW 530i, with its turbocharged 2.0L four-cylinder, achieves a better 28 MPG combined. However, the 530i’s power delivery isn’t as smooth as the G80’s V6, which matters to many G80 buyers. The Mercedes-Benz E300, another turbocharged four-cylinder competitor, also has a higher combined MPG, typically around 25. Opting for the G80’s own 5.0L V8 engine drops the combined MPG down to 19, which makes the 3.3L V6 a more reasonable choice for buyers concerned about fuel costs. Buyers often cross-shop against Lexus as well, and the Lexus GS 350 posts figures close to the G80’s. See all Genesis fuel economy data for a broader model comparison.

Tips to maximize efficiency

Use the G80’s drive modes. The “Eco” mode optimizes throttle response and transmission shift points to prioritize fuel efficiency. It may slightly reduce performance, but it can make a difference in city driving, especially during peak traffic hours where acceleration is less necessary.

Maintain a steady throttle. Avoid sudden acceleration and braking, as these actions consume more fuel. The G80’s eight-speed automatic transmission is designed to shift between gears, so let it do its job efficiently by maintaining a consistent speed and anticipating traffic flow.

Keep up with regular maintenance. Ensure that your G80 receives scheduled maintenance, including oil changes, air filter replacements, and spark plug inspections. A well-maintained engine operates more efficiently, resulting in improved fuel economy. Ensure your fuel injectors are clean, and consider using a fuel system cleaner periodically to prevent buildup.

Minimize idling. Avoid letting the engine idle unnecessarily, as this wastes fuel and contributes to emissions. If you anticipate waiting for more than a minute, turn off the engine. This is relevant in the G80, as its larger engine consumes more fuel at idle compared to smaller four-cylinder alternatives.

Consider your route. When possible, choose routes that minimize stop-and-go traffic and maximize highway driving. This can improve your overall fuel economy, especially on longer trips. Planning your route in advance using a navigation system can help you identify the efficient path, even if it’s slightly longer in distance.