The 2022 Mercedes-Benz GLE450 4Matic gets an EPA-estimated 22 MPG combined. While this won’t lead the class in fuel economy, it’s respectable considering the GLE450’s purpose: to transport families comfortably, provide all-weather security, and offer a refined and responsive driving experience. The GLE450 is designed for buyers who value luxury and capability and are willing to accept average fuel economy.

City and highway performance

The EPA estimates the GLE450 4Matic achieves 20 MPG in the city and 25 MPG on the highway. The city figure reflects typical stop-and-go driving. The 25 MPG highway rating suggests the GLE450 can travel efficiently at steady speeds on longer road trips. The 9-speed automatic transmission is important here, as it keeps the engine at optimal RPMs for efficiency while allowing quick downshifts for passing.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2022 Mercedes-Benz GLE450 4Matic is $2,650. 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, and local fuel prices, For instance, frequent short trips with cold starts are likely to increase this estimate, while primarily highway driving and efficient techniques may lower it.

Real-world expectations

While the EPA figures are a useful baseline, real-world fuel economy often varies. Some GLE450 drivers report numbers close to the EPA estimates, but aggressive driving can easily reduce the MPG. The GLE450’s turbocharged engine and all-wheel-drive system are responsive, which encourages spirited driving, but this increases fuel consumption. Keep in mind the GLE450 is a heavy vehicle, and weight always affects fuel consumption. Using a light touch on the accelerator and anticipating traffic can significantly improve your numbers.

How it compares

The GLE450’s fuel economy is in the middle of its class. The BMW X5 xDrive40i, a similar luxury SUV with an inline-six engine and all-wheel drive, achieves a slightly better 23 MPG combined. The Volvo XC90 B6, with its turbocharged and supercharged four-cylinder engine, also achieves around 22 MPG combined. The Audi Q7 55 TFSI, with its supercharged V6, mirrors the GLE 450’s 22 MPG combined. Ultimately, people choose the GLE450 for its mix of luxury, technology, and brand prestige. Fuel economy is a consideration, but rarely the main reason, against competitors with similar efficiency.

Tips to maximize efficiency

Make sure you use the GLE450’s drive modes. The “Eco” mode reduces throttle response and optimizes the transmission for fuel efficiency. While not the sportiest mode, it can make a difference on long trips. Also, watch your tire pressure, as underinflated tires increase rolling resistance, which hurts fuel economy. Check your tire pressure regularly and inflate them to the levels recommended on the driver’s side doorjamb.

Avoid idling, as modern engines are efficient when running, but idling wastes gas. If you’re waiting or in a traffic jam, consider turning off the engine. Limit hard acceleration and braking because these use more fuel than smooth driving. Anticipate traffic and maintain a steady speed when possible.

Follow the maintenance schedule. A well-maintained engine runs more efficiently. Regular oil changes, air filter replacements, and spark plug inspections keep your GLE450 performing at its best. Neglecting maintenance can hurt fuel economy and cause mechanical problems. For a deeper look, investigate all Mercedes Benz fuel economy data. You can also compare the GLE450 MPG across all years.