The 2021 Mercedes-Benz GLE580 4MATIC gets an EPA-estimated 19 MPG combined, a figure that its target demographic likely won’t mind. This isn’t a vehicle chasing efficiency crowns. It’s a statement of luxury, effortless power, and advanced technology in a supremely comfortable package. GLE580 buyers prioritize a quiet and commanding driving experience, understanding that a potent, torque-rich V8 means more fuel consumption.

City and highway performance

The EPA estimates the GLE580 gets 17 MPG in the city and 22 MPG on the highway. The city figure reflects stop-and-go driving, where the engine’s weight and displacement are more noticeable. The highway figure, while still not spectacular, better represents engine efficiency when cruising at a consistent speed. The 9-speed automatic transmission helps here, keeping the engine in its most efficient range when possible. Ultimately, the GLE580 isn’t about squeezing every last mile from a gallon; it’s about having abundant power on hand for merging onto a busy freeway or tackling a steep mountain pass.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2021 Mercedes-Benz GLE580 4MATIC at $3,050. This is based on driving 15,000 miles per year and using the national average fuel price for premium gasoline, which this vehicle requires. That’s a substantial sum, especially compared to more fuel-efficient SUVs or even hybrids. But prospective GLE580 owners likely already factor this into their overall ownership costs. They prioritize the vehicle’s luxury, performance, and prestige, and are less sensitive to fuel prices than the average car buyer.

Real-world expectations

Real-world fuel economy with the GLE580 will vary depending on driving habits, traffic, and terrain. Aggressive acceleration, frequent hard braking, and extended idling will all hurt fuel consumption. Owners who primarily drive in urban environments with heavy traffic should expect figures closer to, or even slightly below, the EPA’s city estimate.

However, those who spend more time on the open highway, using cruise control and maintaining a steady speed, might achieve figures closer to the EPA’s highway estimate, or even slightly above. Keep in mind that the 4MATIC all-wheel-drive system, while enhancing traction and stability, adds weight and rotating mass, leading to slightly lower fuel economy compared to a rear-wheel-drive variant, should one exist.

How it compares

The GLE580’s fuel economy is comparable to other large luxury SUVs with powerful engines, but not class-leading. The BMW X5 M50i, with its similar V8 engine, has EPA figures of 16 MPG city and 22 MPG highway. The Land Rover Range Rover P525, another V8-powered competitor, achieves a combined 18 MPG. Even the Porsche Cayenne S, known for its sporting character, lands around 19 MPG combined. The Lexus RX 450h hybrid delivers substantially better fuel economy, around 30 MPG combined, but it caters to a different buyer who values less gas above outright performance and a throaty V8 soundtrack. For comparisons, also research GLE580 MPG across all years.

Tips to maximize efficiency

The GLE580 is not designed to be a fuel-sipping champion, but some habits can improve fuel economy. Avoid aggressive acceleration and hard braking. The V8’s torque is addictive, but gentle throttle inputs will significantly reduce fuel consumption, especially in city driving. Anticipate traffic flow and maintain a consistent speed whenever possible.

Ensure your tires are properly inflated because underinflated tires increase rolling resistance. This forces the engine to work harder and use more fuel. Check your tire pressures regularly and maintain them at the recommended levels. Find all all Mercedes Benz fuel economy data on this site.

Minimize idling. Modern engines are remarkably efficient when running, but idling burns fuel without covering any distance. If you anticipate being stopped for more than a minute or two, turn off the engine. The GLE580’s start-stop system is designed to do this automatically, but it can be manually disengaged if desired.

Use cruise control on the highway, which helps maintain a consistent speed, preventing unnecessary acceleration and deceleration. Be mindful of traffic conditions and disengage cruise control when appropriate.