14 MPG combined. No one considering a 2022 Mercedes-Benz AMG G63 is prioritizing fuel efficiency. This is a nearly three-ton brick shaped like a bank vault, propelled by a hand-built, fire-breathing 4.0L V8. Buyers aren’t cross-shopping this with a Prius, they’re seeking a blend of off-road capability, on-road presence, and quick acceleration. Fuel economy is the cost of admission to this exclusive club.

City and highway performance

The EPA estimates put the AMG G63 at 13 MPG in the city and 16 MPG on the highway. These numbers reflect the vehicle’s weight, permanent all-wheel drive system, and that powerful engine. The city figure suffers from the constant stop-and-go driving, which requires frequent boosts from the turbochargers, and the highway figure is affected by the G63’s less-than-aerodynamic shape. The nine-speed automatic transmission, while offering quick and smooth shifts, can’t overcome the fundamental physics here. These figures are not unexpected, and not particularly consequential for the target demographic.

Annual fuel cost

According to the EPA, the estimated annual fuel cost for the 2022 AMG G63 is $4,150. This figure is based on driving 15,000 miles per year and using national average fuel prices. Premium fuel is required, which increases the cost even further. While this number might cause sticker shock for the average car buyer, it’s unlikely to deter someone capable of affording a six-figure SUV. It’s part of the ownership experience.

Real-world expectations

The EPA provides a standardized estimate, but real-world fuel economy for the AMG G63 can vary widely depending on driving style and conditions. Aggressive acceleration, frequent off-roading, or extended periods spent idling in traffic will likely result in significantly lower MPG than the EPA estimates. Conservative driving with a focus on maintaining consistent speeds on the highway might yield slightly improved figures. Achieving the EPA estimates consistently will require a conscious effort and a degree of restraint that may be at odds with the G63’s inherent character.

How it compares

The AMG G63 occupies a unique space in the automotive landscape, but some comparisons can be drawn. The Land Rover Range Rover P530, with its supercharged V8, manages a slightly better, but still unimpressive combined MPG of 18. The Cadillac Escalade, despite its size, achieves around 16 MPG combined with its V8, showcasing the benefit of cylinder deactivation technology which the AMG G63 lacks. Even within the Mercedes-Benz family, you can find more efficient options. Explore all Mercedes Benz fuel economy data to review the range. However, none of these vehicles offer the same combination of off-road pedigree, imposing presence, and raw performance that defines the AMG G63. Buyers in this segment prioritize these attributes over fuel economy, making direct comparisons somewhat irrelevant for many of them. For those seeking an overview, review AMG MPG across all years.

Tips to maximize efficiency

While fuel economy may not be a primary concern, there are a few strategies to minimize fuel consumption in the AMG G63. Avoid aggressive acceleration and braking. The G63’s powerful engine can deliver exhilarating performance, but it also consumes a significant amount of fuel when pushed hard. Smooth, gradual acceleration and anticipating traffic conditions can make a noticeable difference.

Ensure proper tire inflation. Underinflated tires increase rolling resistance, requiring the engine to work harder and consume more fuel. Check tire pressure regularly and maintain the recommended levels specified in the owner’s manual.

Minimize idling time. Idling consumes fuel without covering any distance. If you anticipate being stationary for more than a minute or two, turn off the engine. The G63’s engine is strong, so starting it back up won’t strain the system in the way lesser engines might.

Use cruise control on the highway. Maintaining a consistent speed on the highway with cruise control can help optimize fuel efficiency. The G63’s adaptive cruise control system can also help maintain a safe following distance, reducing the need for frequent acceleration and braking.