Nineteen miles per gallon combined won’t win any fuel economy awards, but it’s a reality accepted by those seeking the comfortable luxury and understated presence of the 2021 Genesis G90 RWD 3.3L. This isn’t a vehicle aimed at saving every drop of fuel. It’s for executives, entrepreneurs, and seasoned professionals who prioritize a smooth ride, spacious interior, and many standard features, often opting for the G90 as a chauffeured experience. The 3.3L twin-turbo V6 provides ample power for effortless cruising, but it comes at a cost, reflected in its fuel consumption.

City and highway performance

The EPA estimates the 2021 Genesis G90 RWD 3.3L at 17 MPG in the city and 24 MPG on the highway. The city figure reflects the stop-and-go driving that premium sedans often endure, navigating urban areas. The highway MPG, while better, isn’t class-leading, and speaks to the vehicle’s size and focus on comfort over outright efficiency. Genesis prioritized a plush, quiet ride, which requires weight and sound-deadening materials that impact fuel economy.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2021 Genesis G90 RWD 3.3L at $3,050. This calculation is based on driving 15,000 miles per year and using national average fuel prices. Remember that depending on your driving habits and local fuel costs, your actual expenses may vary.

Real-world expectations

While the EPA figures provide a baseline, real-world fuel economy can differ significantly. Factors such as driving style, terrain, and ambient temperature can all influence fuel consumption. Aggressive acceleration, frequent braking, and extended idling will undoubtedly lower your MPG. Conversely, smooth, deliberate driving on flat terrain in moderate temperatures can help you approach, and potentially even exceed, the EPA estimates. Understanding your own driving patterns is key to predicting your actual fuel costs.

How it compares

Compared to its competitors, the 2021 Genesis G90’s fuel economy is in the general area, though some rivals perform slightly better. For example, the Lexus LS 500 RWD achieves an EPA-estimated 19 MPG city and 30 MPG highway. The Mercedes-Benz S500 manages around 21MPG city and 31 MPG Highway. These differences, while seemingly minor, can add up over time. However, the G90 often has a lower price and more standard features, which may offset the fuel economy difference for many buyers. It’s about trade-offs: prioritizing features and value versus squeezing out every last mile per gallon. If you’re interested in G90 MPG across all years, there are some interesting data points to consider.

Tips to maximize efficiency

One simple tip is to ensure your tires are properly inflated. Underinflated tires increase rolling resistance, which in turn lowers fuel economy. Refer to the sticker on your driver’s side doorjamb for the correct tire pressure.

Avoid aggressive driving habits like sudden acceleration and hard braking. The G90’s smooth eight-speed automatic transmission is designed to optimize fuel efficiency when driven with a gentle foot.

Minimize idling time. If you’re stopped for more than a minute, it’s generally more fuel-efficient to turn off the engine. The G90’s start-stop system can help with this in stop-and-go traffic, but be sure to familiarize yourself with its operation.

Consider using cruise control on long highway drives. Maintaining a consistent speed can significantly improve fuel economy compared to constantly varying your throttle input. Also, anticipate traffic conditions and adjust your speed accordingly.

Finally, regularly service your G90 according to the manufacturer’s recommended maintenance schedule. A well-maintained engine runs more efficiently, which can translate to better fuel economy. You can find all Genesis fuel economy data to see how the G90 compares to other models in the lineup.