If you’re considering a 2015 Hyundai Genesis RWD with the 5.0-liter V8, expect 18 MPG combined. This isn’t a Prius competitor. This Genesis is a full-size luxury sedan designed for effortless acceleration and a supremely comfortable ride, and fuel efficiency is less important than those priorities. Buyers attracted to this model are likely more interested in the strong power and confident highway driving than saving gas.

City and highway performance

The EPA estimates the 2015 Genesis RWD 5.0L at 15 MPG in the city and 23 MPG on the highway. The city figure reflects the engine’s appetite for fuel when accelerating and navigating traffic. The highway number is more achievable during steady cruising where the eight-speed automatic transmission can settle into its higher gears and the engine runs efficiently. Aggressive passing or sustained high-speed driving will quickly lower that 23 MPG figure.

Annual fuel cost

The EPA calculates that the annual fuel cost for the 2015 Hyundai Genesis RWD 5.0L will be $3,200. This figure is based on driving 15,000 miles per year, with 45% of those miles driven in the city and 55% on the highway, and using the national average fuel price. If you drive more aggressively, spend more time in stop-and-go traffic, or if fuel prices rise, your actual fuel costs will likely exceed this estimate. This Genesis requires premium fuel, which increases the overall cost to operate it.

Real-world expectations

While the EPA numbers offer a baseline, real-world fuel economy will vary based on driving habits and conditions. Drivers who accelerate quickly can expect to see figures closer to the low end of the EPA range, or even lower, especially in cities. Those who prioritize smooth acceleration, anticipate traffic flow, and spend more time on the open road may be able to achieve numbers closer to the EPA’s highway estimate, or slightly better. The 5.0L V8 is responsive, so resist accelerating quickly at every opportunity.

How it compares

The Genesis 5.0L’s fuel economy is behind some of its more modern rivals. The BMW 550i from the same year, equipped with a turbocharged V8, achieves an EPA-estimated 17 MPG city and 25 MPG highway. An Audi A6 3.0T, with its supercharged V6, fares even better at 20 MPG city and 30 MPG highway. Even the Lexus GS 350, with its V6, manages 19 MPG city and 29 MPG highway. The Genesis has a traditional, naturally aspirated V8, which requires more fuel. If fuel economy is important, exploring other vehicles or exploring GENESIS MPG across all years might reveal better options.

Tips to maximize efficiency

Gentle acceleration from a standstill makes a noticeable difference with a large engine like the 5.0L V8. Avoid abrupt starts and hard braking, as these waste fuel. Strive for smooth and gradual acceleration, allowing the engine to build power progressively.

Use cruise control on the highway to maintain a consistent speed. This can help prevent unnecessary acceleration and deceleration, which consume extra fuel. Maintaining a steady pace optimizes the engine’s efficiency and minimizes fuel consumption. Keep the tires at the recommended pressure, you’ll be able to lessen drag.

Consider using the Genesis’s “Eco” mode if one exists. These modes typically adjust the throttle response and transmission shift points to save fuel. Eco mode can help control the engine’s output and encourage better gas mileage, however you will substantially sacrifice performance.

Regular maintenance, including oil changes and air filter replacements, is important for maintaining optimal fuel efficiency. A properly maintained engine runs more efficiently, maximizing fuel economy. Neglecting maintenance can lead to decreased performance and increased fuel consumption. Conduct regular check-ups to make sure your car is running optimally.

This Hyundai is a strong value alternative to the German rivals, but it has some downsides. Before choosing this vehicle, explore all Hyundai fuel economy data to ensure your purchase decision will align with your needs.