18 MPG combined isn’t going to win any fuel economy awards, but fuel efficiency also isn’t the primary concern for buyers of the 2020 Genesis G80 AWD with the 5.0L V8. This is a car purchased for its effortless power, luxurious features, and value within the executive sedan segment. Sacrifices are sometimes made for character, and the G80’s strong V8 brings a distinct character that some buyers actively seek, knowing that efficiency is less important.

City and highway performance

The EPA estimates 15 MPG in the city and 23 MPG on the highway for the 2020 Genesis G80 5.0 AWD. While these aren’t impressive numbers, they are fairly representative of what one can expect from a naturally aspirated, 5.0-liter V8 powering an all-wheel-drive sedan weighing in at just over 4,500 pounds. The eight-speed automatic transmission does its best to optimize fuel efficiency, but physics still plays a significant role. The city MPG will likely fluctuate more drastically based on driving style and traffic conditions than the highway figure, which tends to be more consistent at steady cruising speeds.

Annual fuel cost

According to the EPA, the estimated annual fuel cost for the 2020 Genesis G80 5.0 AWD is $3,200. This calculation is based on driving 15,000 miles per year and using national average fuel prices. Your actual fuel costs will vary depending on your driving habits, the type of driving you do, and the price of gasoline where you live. Frequent short trips in heavy traffic will undoubtedly increase your expenses, while consistent highway driving might bring them slightly lower. $3,200 is the benchmark to consider; it reflects the reality of owning a V8-powered luxury sedan.

Real-world expectations

While the EPA estimates provide a baseline, real-world fuel economy often differs. Owners of the 2020 Genesis G80 5.0 AWD can expect to see figures that closely align with the EPA’s highway estimate during long-distance trips. However, combined driving will likely fall slightly below the 18 MPG mark, especially if city driving is most common. Aggressive acceleration and frequent idling will significantly reduce fuel economy. Those who prioritize smooth, moderate driving habits will see the best results. Owner forums and fuel tracking apps can offer insights into what other G80 5.0 AWD owners are experiencing in similar driving conditions.

How it compares

The G80 5.0 AWD’s fuel economy places it in a specific niche within the luxury sedan segment. For comparison, the BMW 540i xDrive, with its turbocharged inline-six, manages 25 MPG combined. The Mercedes-Benz E450 4MATIC, also using a turbocharged six-cylinder, achieves a similar 26 MPG combined. The Lexus GS 350 AWD gets 22 MPG combined. These vehicles offer a blend of performance and efficiency that the G80 5.0 AWD can’t match. However, they lack the raw V8 power and the lower price that the Genesis offers. Buyers who are drawn to the Genesis are often less concerned with squeezing every last mile out of a gallon and more interested in the overall driving experience and the luxury amenities it offers for less than its European rivals. You can check G80 MPG across all years on our site!

Tips to maximize efficiency

Fuel economy might not be the top priority for G80 5.0 AWD owners, but there are still ways to optimize efficiency without sacrificing the driving experience. One simple step is to ensure that your tires are properly inflated. Underinflated tires increase rolling resistance, which reduces fuel economy. Check your tire pressure regularly and inflate them to the recommended levels.

Avoid excessive idling. The G80’s V8 engine consumes a significant amount of fuel while idling, especially when the engine is cold. If you anticipate being stopped for more than a minute or two, turn off the engine. This simple action can save a surprising amount of fuel.

Use cruise control on the highway. Maintaining a consistent speed on long drives helps to minimize fuel consumption. Cruise control prevents unnecessary acceleration and deceleration, leading to better fuel efficiency. Make sure that conditions are safe for cruise control use, and avoid using it in heavy traffic or inclement weather.

Practice smooth acceleration and braking. Hard acceleration and abrupt braking waste fuel. Anticipate traffic flow and accelerate gradually. Allow ample distance to stop safely and avoid unnecessary hard braking. The G80’s powerful engine makes it easy to accelerate quickly, but doing so frequently will definitely impact your mileage.

Consider lighter wheels. While the factory wheels on the G80 look great, upgrading to lighter wheels can improve your fuel economy slightly. Lighter wheels reduce unsprung weight and rotational inertia, which makes it easier for the engine to accelerate the car. Be sure to select wheels that are compatible with your car’s brakes and suspension, and make sure to check all Genesis fuel economy data.