20 MPG combined won’t win any fuel efficiency awards, but for the 2018 Genesis G90 RWD equipped with the 3.3L twin-turbo V6, most owners likely accept it as a cost. The G90 isn’t purchased for its fuel economy; it’s chosen for its spacious cabin, smooth ride, and features offered at a lower price than German rivals. Buyers prioritize luxury and value, viewing the G90 as a comfortable long-distance cruiser.

city and highway performance

The G90’s EPA ratings break down to 17 MPG in the city and 24 MPG on the highway. The city figure reflects the challenge of hauling a large sedan with a turbocharged engine through stop-and-go traffic. The twin-turbo V6 provides ample power, but it requires fuel to overcome the vehicle’s mass. The highway rating of 24 MPG shows the G90’s ability to settle into a relaxed, reasonably efficient pace on longer journeys. The eight-speed automatic transmission helps, keeping the engine at optimal RPM for cruising.

annual fuel cost

The EPA estimates the annual fuel cost for the 2018 Genesis G90 RWD 3.3L 6-cyl is approximately $2,900. This is based on driving 15,000 miles per year and using the national average price for premium gasoline, which the G90 requires. Fluctuations in gas prices will affect this annual cost directly. Drivers who drive more than 15,000 miles annually will see their fuel expenses rise. This cost is part of the ownership experience for most G90 shoppers.

real-world expectations

EPA estimates provide a baseline, but real-world fuel economy can vary depending on driving habits, traffic, and tires. Aggressive acceleration, hard braking, and prolonged idling can lower MPG. Driving in congested city environments will likely result in fuel economy figures closer to the 17 MPG city rating. Drivers who accelerate smoothly and maintain consistent speeds on the highway may find themselves exceeding the 24 MPG highway estimate. Owners can view G90 MPG across all years to see what others are experiencing.

how it compares

The 20 MPG combined places the G90 near other large luxury sedans with similar performance. The 2018 BMW 740i, with its 3.0L turbocharged inline-six, gets an EPA-estimated 24 MPG combined. A Mercedes-Benz S450 from the same year, with a 3.0L turbocharged V6, gets around 22 MPG combined. The Lexus LS 500 offers about 23 MPG combined. The G90 emphasizes value and space, meaning other cars may get better MPG. When comparing alternatives to the G90, review all Genesis fuel economy data to see if similar Genesis models meet your MPG expectations.

tips to maximize efficiency

One simple way to improve fuel economy in the G90 is to drive smoothly and avoid rapid acceleration. The twin-turbo V6 is responsive, so you don’t need to push the throttle to get up to speed. Gentle acceleration and anticipating traffic flow will reduce fuel consumption. Think ahead and use the car’s momentum.

Maintain a steady speed and avoid unnecessary braking. Ensure your G90 is properly maintained, paying attention to tire pressure. Underinflated tires increase rolling resistance, which lowers fuel economy. Regularly check your tire pressure and inflate them to the recommended levels on the doorjamb sticker.

Keeping up with routine maintenance, such as oil changes and air filter replacements, will help the engine run efficiently. Minimize idling time. Idling consumes fuel without covering distance. If you’re waiting, turn off the engine. Modern vehicles restart quickly.

Reduce the weight you carry in the G90. Excess weight makes the engine work harder, reducing fuel economy. Remove unnecessary items from the trunk. You don’t want to turn the car into a storage locker.