Mercedes GL-Class 2016 Fuel Economy: Your Perfect Drive

The 2016 Mercedes-Benz GL-Class offers a compelling blend of luxury, space, and capability. Understanding its fuel economy is key to maximizing your driving experience and budget. While not its primary focus, the GL-Class delivers competitive fuel efficiency for its class, especially with the right driving habits and maintenance.

Owning a Mercedes-Benz GL-Class in 2016 meant experiencing unmatched luxury and capability. Yet, like many drivers, you might wonder about its fuel efficiency. It’s a common question: “How much gas does this beautiful machine actually use?” You’re not alone if you feel a little lost in the numbers or wish for better miles per gallon. Don’t worry; understanding your GL-Class’s fuel economy is simpler than you think. We’re here to guide you through exactly what to expect and how to get the most out of every tank.

Your 2016 GL-Class: Understanding the Numbers

The 2016 Mercedes-Benz GL-Class, a full-size luxury SUV, was designed for comfort, space, and powerful performance with its robust V6 and V8 engine options. When evaluating its fuel economy, it’s essential to consider these powerful engines and the vehicle’s substantial size and weight. Mercedes-Benz engineers strived to balance this power with reasonable efficiency for its segment.

Key Factors Influencing Fuel Economy:

Engine Choice: Different engine variants will naturally have different fuel consumption rates.
Drivetrain: All 2016 GL-Class models came standard with 4MATIC all-wheel drive, which can have a slight impact on efficiency compared to rear-wheel drive.
Driving Habits: Aggressive acceleration and braking significantly increase fuel usage.
Maintenance: Properly maintained vehicles are generally more fuel-efficient.
Driving Conditions: City driving with frequent stops and starts is less efficient than highway cruising.

2016 GL-Class Fuel Economy Ratings

The U.S. Environmental Protection Agency (EPA) provides official fuel economy estimates for vehicles. These figures are a valuable benchmark for comparing different models and understanding expected performance. For the 2016 Mercedes-Benz GL-Class, the EPA ratings depend on the specific model and engine.

Here’s a breakdown of the EPA-estimated fuel economy for the 2016 GL-Class models:

Model	Engine	City MPG	Highway MPG	Combined MPG
GL350 BlueTEC 4MATIC	3.0L V6 Turbodiesel	19	24	21
GL450 4MATIC	4.7L V8 Biturbo	14	19	16
GL550 4MATIC	4.7L V8 Biturbo	13	18	15
GL63 AMG 4MATIC	5.5L V8 Biturbo	13	17	14

Note: These are EPA estimates. Real-world fuel economy will vary based on driving conditions, vehicle maintenance, and driving habits.

As you can see, the GL350 BlueTEC turbo-diesel engine offers the highest fuel efficiency, which is typical for diesel powertrains, especially on the highway. The V8 engines in the GL450 and GL550 provide more power at the expense of fuel economy, while the high-performance GL63 AMG is designed for exhilarating driving, with fuel economy being a secondary concern.

Deep Dive: Engine Options and Their Fuel Efficiency

Let’s take a closer look at each engine option for the 2016 GL-Class and what you can expect in terms of fuel economy and driving experience.

The Fuel-Smart Choice: GL350 BlueTEC 4MATIC

The GL350 BlueTEC variant is powered by a 3.0-liter V6 turbodiesel engine. This powertrain is celebrated for its torque and surprisingly good fuel economy for a vehicle of its size.
Engine: 3.0L V6 Turbodiesel
Horsepower: 240 hp
Torque: 455 lb-ft
EPA Combined MPG: 21 MPG (19 City / 24 Highway)

The diesel engine’s efficiency stems from the inherent nature of diesel combustion, which is more energy-dense than gasoline. This makes the GL350 BlueTEC an excellent option if you prioritize longer driving ranges and fewer fuel stops, especially for highway commutes or road trips. The substantial torque also means it can tow with ease without feeling strained. For those who drive a significant amount, the fuel savings over time can be quite noticeable.

The Balanced Performer: GL450 4MATIC

The GL450 is equipped with a 4.7-liter V8 biturbo engine. This is often considered the sweet spot for many buyers, offering a robust blend of power and luxury.
Engine: 4.7L V8 Biturbo
Horsepower: 362 hp
Torque: 406 lb-ft
EPA Combined MPG: 16 MPG (14 City / 19 Highway)

While its fuel economy is lower than the diesel, the GL450 still provides a significant performance upgrade. The twin-turbochargers deliver power smoothly and responsively, making merging onto highways and overtaking effortless. For those who don’t drive excessively or prioritize a more refined gasoline V8 experience, the GL450 is a compelling choice.

The Potent Powerhouse: GL550 4MATIC

Stepping up, the GL550 also houses a 4.7-liter V8 biturbo engine but is tuned for higher output and performance.
Engine: 4.7L V8 Biturbo
Horsepower: 449 hp
Torque: 516 lb-ft
EPA Combined MPG: 15 MPG (13 City / 18 Highway)

The GL550 offers a noticeable surge in power and acceleration compared to the GL450. This comes with a slight dip in fuel economy, as expected from a more potent engine. If you crave more thrilling acceleration and don’t mind the increased fuel consumption, the GL550 delivers a more exhilarating driving experience.

The Ultimate Performance Machine: GL63 AMG 4MATIC

For the true performance enthusiast, the GL63 AMG takes the GL-Class to an entirely different level. It boasts an even larger and more powerful V8 engine.
Engine: 5.5L V8 Biturbo (AMG-tuned)
Horsepower: 550 hp
Torque: 560 lb-ft
EPA Combined MPG: 14 MPG (13 City / 17 Highway)

The GL63 AMG is a handcrafted performance SUV. Its fuel economy is the lowest of the range, reflecting its focus on extreme power, acceleration, and a distinctive AMG driving dynamic. This model is for those who prioritize exhilaration and performance above all else, with fuel efficiency being a secondary consideration.

Maximizing Your Fuel Economy: Practical Tips for GL-Class Owners

Even with the inherent characteristics of a large luxury SUV, there are several actionable steps you can take to improve your 2016 GL-Class’s real-world fuel economy. These tips are easy to implement and can make a tangible difference over time.

1. Drive Smoothly and Prudently:
Gentle Acceleration: Avoid quick, aggressive starts. Accelerate gradually and smoothly.
Anticipate Stops: Look ahead and anticipate traffic lights and slowdowns. Coasting to a stop is more efficient than braking hard at the last moment.
Maintain Steady Speed: On the highway, use cruise control to maintain a consistent speed. Frequent speed fluctuations waste fuel.

2. Proper Tire Maintenance:
Tire Pressure: Ensure your tires are inflated to the manufacturer’s recommended pressure. Underinflated tires increase rolling resistance, forcing your engine to work harder and consume more fuel. You can typically find the recommended pressure on a sticker in the driver’s side doorjamb or in your owner’s manual.
Tire Type: Consider tires designed for low rolling resistance when it’s time for replacement.

3. Reduce Unnecessary Weight:
Declutter: Remove any heavy items from your cargo area or cabin that you don’t need for your trip. Extra weight requires more energy to move.

4. Optimize Aerodynamics:
Windows and Sunroof: Keep windows and the sunroof closed at higher speeds (above 40-50 mph). Open windows create drag, reducing fuel efficiency.
Roof Racks and Cargo Carriers: Remove roof racks or cargo carriers when not in use, as they significantly increase aerodynamic drag.

5. Regular Maintenance:
Tune-Ups: Ensure your GL-Class is up-to-date on its scheduled maintenance. A well-tuned engine, with clean air filters and properly functioning spark plugs (for gasoline models), will operate more efficiently.
Fluid Checks: Ensure all fluids, including engine oil, are at their appropriate levels and of the correct type. For premium vehicles like the GL-Class, using the recommended synthetic oil can offer better lubrication and efficiency. Visit a certified Mercedes-Benz service center for expert care.

6. Plan Your Routes:
Avoid Peak Traffic: If possible, plan your driving to avoid rush hour. Stop-and-go traffic is a major fuel drain.
Combine Errands: Group your errands into a single trip to avoid multiple cold starts, which are less efficient.

7. Understand Your 4MATIC All-Wheel Drive:
While 4MATIC provides excellent traction and stability in various conditions, which is a significant benefit of the GL-Class, it does add some weight and drivetrain loss compared to a rear-wheel-drive system. This is a trade-off for enhanced capability. There are no specific “modes” to change for fuel economy on the 2016 GL-Class as it’s a full-time system, but driving gently ensures the system operates efficiently. For more information on Mercedes-Benz drivetrain technology, you can explore resources from Mercedes-Benz USA or reputable automotive engineering sites.

Real-World Fuel Economy vs. EPA Estimates

It’s important to remember that EPA estimates are standardized tests performed under controlled conditions. Your actual mileage will vary based on numerous factors:

Driving Style: As mentioned, aggressive driving can reduce MPG by 10-30%.
Terrain: Driving in hilly or mountainous areas requires more fuel than flat terrain.
Weather: Cold weather can decrease fuel efficiency as the engine takes longer to warm up, and winter fuel blends may be less energy-dense.
Load: Carrying heavy passengers or cargo will impact fuel economy.
Accessory Use: Running the air conditioning or heating system uses engine power, affecting MPG.
* Vehicle Condition: Unaddressed mechanical issues (e.g., dragging brakes, dirty fuel injectors) can decrease efficiency.

Many owners find that driving their GL-Class on the highway yields mileage closer to or even exceeding the EPA highway estimates, especially with the GL350 BlueTEC. Conversely, heavy city driving will almost always result in lower figures than the EPA city estimates.

Fuel Economy and the GL-Class Owner Experience

The 2016 Mercedes-Benz GL-Class represents a significant investment in luxury, safety, and capability. While it’s a large, powerful SUV, its fuel economy is competitive within its segment, particularly for the diesel variant. Understanding the numbers and adopting efficient driving habits can help you enjoy this exceptional vehicle while being mindful of running costs.

For the GL350 BlueTEC owner, stretching out fuel stops and enjoying the torque feels rewarding from both a practical and performance standpoint. For those with the V8 models, the focus is often on the seamless power delivery and refined experience, with fuel consumption being a natural consequence of that performance.

Regardless of the engine you choose, the quality of the drive, the space for family and cargo, and the advanced safety features are hallmarks of the GL-Class experience. By implementing the tips provided, you can ensure your GL-Class continues to offer a superb driving experience with the best possible fuel efficiency.

Frequently Asked Questions (FAQ)

Q1: What is the best fuel economy for a 2016 Mercedes-Benz GL-Class?
A1: The 2016 Mercedes-Benz GL350 BlueTEC 4MATIC, with its 3.0L V6 turbodiesel engine, offers the best fuel economy. It achieves an EPA-estimated 19 MPG in the city, 24 MPG on the highway, and 21 MPG combined.

Q2: How does highway driving affect the fuel economy of my GL-Class?
A2: Highway driving is generally more fuel-efficient than city driving for all GL-Class models. At consistent speeds, the engine works less, and there are fewer stops and starts, leading to better mileage. The GL350 BlueTEC, in particular, shines on the highway.

Q3: Is there a way to improve the fuel economy if I have a V8 engine in my 2016 GL-Class?
A3: Yes, you can improve fuel economy by driving smoothly and avoiding aggressive acceleration. Also, ensure your tires are properly inflated and remove any unnecessary weight or aerodynamic drag from the vehicle. Regular maintenance is also crucial.

Q4: Does the 4MATIC all-wheel drive system impact fuel economy significantly?
A4: The 4MATIC all-wheel drive system provides excellent traction and stability, but it does add some weight and drivetrain friction compared to a rear-wheel drive system, which can lead to a slight decrease in fuel economy. However, for a luxury SUV of this size and capability, the benefits of 4MATIC often outweigh the minor MPG difference.

Q5: What kind of fuel should I use in my 2016 GL-Class?
A5: The GL350 BlueTEC requires diesel fuel. The GL450, GL550, and GL63 AMG gasoline models typically require premium unleaded gasoline (91 octane or higher) for optimal performance and efficiency, as specified in your owner’s manual and on the fuel door. Using the recommended fuel type is essential for engine longevity and performance.

Q6: How often should I perform maintenance to keep my GL-Class fuel-efficient?
A6: Adhere to the maintenance schedule outlined in your owner’s manual. This typically includes regular oil changes, air filter replacements, and checks of other essential components. For specific recommendations, consult a certified Mercedes-Benz technician.

Q7: Can using a different type of tire affect my GL-Class fuel economy?
A7: Yes, the type of tire can affect fuel economy. Tires designed with lower rolling resistance can improve efficiency by requiring less energy to move. When it’s time to replace your tires, consider looking for options that emphasize fuel efficiency, alongside the necessary performance and safety characteristics for your GL-Class.

Conclusion: Enjoying Your GL-Class Drive

Your 2016 Mercedes-Benz GL-Class is a remarkable vehicle, blending spacious luxury with commanding presence. Understanding its fuel economy is a practical step in maximizing your ownership experience, whether you’re a daily commuter or an occasional road-tripper. While the GL350 BlueTEC stands out for its efficiency, all models offer reasonable performance for their class when driven mindfully.

By adopting smooth driving techniques, maintaining proper tire pressure, keeping up with scheduled maintenance, and minimizing unnecessary weight and drag, you can optimize your GL-Class’s fuel consumption. Even small adjustments can lead to noticeable savings over time, allowing you to enjoy the refined ride and capability of your Mercedes-Benz with greater confidence and a smarter approach to running costs. Embrace the journey ahead, knowing you’re getting the most out of your sophisticated and capable GL-Class.