The Mercedes G63 AMG is a high-performance luxury SUV known for its raw power and rugged design. While it’s not built for fuel economy, understanding its MPG (miles per gallon) helps drivers prepare for ownership costs and plan trips wisely. This guide breaks down real-world fuel efficiency, driving tips, and comparisons to help you make informed decisions.
Key Takeaways
- Fuel Efficiency: The Mercedes G63 AMG typically delivers 11-15 MPG combined, depending on driving conditions and model year.
- Engine Power: Powered by a twin-turbo V8 engine producing over 577 horsepower, the G63 prioritizes performance over economy.
- Driving Tips: Using eco-mode, maintaining steady speeds, and reducing unnecessary weight can improve MPG by up to 10%.
- Real-World Data: Most owners report 12-14 MPG in city driving and 16-18 MPG on highways under normal conditions.
- Comparison: Compared to other luxury SUVs like the BMW X5 or Audi Q7, the G63 has lower MPG due to its heavy-duty build and powerful engine.
- Fuel Costs: At current gas prices, expect to spend $150–$200 per tank on average, depending on distance and terrain.
- Hybrid Future: Mercedes plans electrified versions like the EQG, but the traditional G63 remains a gas-powered icon for now.
Quick Answers to Common Questions
What is the best MPG the Mercedes G63 AMG can achieve?
Under ideal highway conditions with steady speeds and eco mode, the G63 AMG can reach 16-18 MPG.
Does off-roading kill the G63 AMG’s fuel efficiency?
Yes—off-roading can drop MPG to 9-11 due to increased load and aggressive driving.
Can I improve MPG without buying new parts?
Yes—using eco mode, maintaining tire pressure, and driving smoothly can improve MPG by 1-2 mpg.
Is the G63 AMG more efficient than the regular G-Class?
No—the AMG version has a more powerful engine, so it gets slightly lower MPG than non-AMG variants.
Will Mercedes ever make a hybrid G63?
There are rumors of an electric EQG, but no official hybrid G63 has been announced yet.
📑 Table of Contents
- Introduction: Is the Mercedes G63 AMG Fuel Efficient?
- The Real Story Behind the G63 AMG’s Fuel Economy
- Breaking Down the Mercedes G63 AMG Engine and Performance
- Comparing MPG: G63 AMG vs. Other Luxury SUVs
- Tips to Improve Your Mercedes G63 AMG MPG
- Real Owner Experiences: What to Expect in Daily Life
- The Future: Will the G63 Ever Get Better MPG?
- Conclusion: Is the Mercedes G63 AMG Worth the Fuel Cost?
Introduction: Is the Mercedes G63 AMG Fuel Efficient?
Let’s face it—when most people think of the Mercedes G63 AMG, they picture a roaring, blacked-out luxury SUV tearing through deserts or city streets with unmatched style. And yes, it does all that and more. But if you’re wondering about the Mercedes G63 AMG MPG, you’re not alone. After all, even the flashiest cars need gas, and knowing your fuel consumption can save you money and headaches.
This article dives deep into the real-world miles per gallon (MPG) of the G63 AMG, explaining why it’s not exactly a gas guzzler—but also not a fuel-sipping marvel either. Whether you’re considering buying one or just curious how it stacks up against competitors, we’ve got you covered with clear numbers, practical tips, and honest insights.
The Real Story Behind the G63 AMG’s Fuel Economy
The Mercedes G63 AMG isn’t built for fuel efficiency—it was built for dominance. With its iconic boxy shape, aggressive stance, and a hand-built AMG V8 engine, it’s a machine designed to impress, not conserve. Still, understanding its MPG helps set realistic expectations for every owner.
Visual guide about Mercedes G63 Amg Mpg
Image source: autocar.co.uk
Official vs. Real-World MPG Numbers
The EPA estimates for the G63 AMG are around 11-15 MPG combined. That means if you drive 1,000 miles in mixed city and highway conditions, you might use 67 to 91 gallons of gas. Sounds high? It is—but remember, this car weighs over 5,000 pounds and produces 577 horsepower.
Now, let’s talk real life. Most drivers report getting closer to 12-14 MPG in the city and 16-18 MPG on the highway. That’s because the G63 uses all-wheel drive, adaptive suspension, and performance-oriented tires—all of which add resistance and reduce efficiency.
How Driving Style Affects MPG
Just like any vehicle, how you drive matters. Aggressive acceleration, frequent hard braking, and speeding all hurt fuel economy. On the flip side, smooth driving, anticipating stops, and using cruise control on long trips can boost your MPG by several points.
One owner in Arizona shared: “I usually get 13 MPG around town, but when I take my G63 on a road trip with steady speeds and no off-roading, I hit 17 MPG. It’s not perfect, but it’s manageable.”
Breaking Down the Mercedes G63 AMG Engine and Performance
To understand why the G63 AMG doesn’t get great MPG, you first need to know what powers it. The heart of this beast is a hand-crafted AMG 4.0-liter twin-turbo V8 engine. It’s not just loud and powerful—it’s engineered for torque and speed, not fuel savings.
Visual guide about Mercedes G63 Amg Mpg
Image source: tacot.com
Engine Specifications
- Displacement: 4.0 liters
- Power Output: 577 horsepower at 6,000 RPM
- Torque: 627 lb-ft at 2,500–5,000 RPM
- Transmission: 9-speed automatic
- Drivetrain: Permanent all-wheel drive with three differential locks
This setup allows the G63 to go from 0 to 60 mph in just 4.5 seconds. But that quickness comes with a cost—literally, in gallons per mile.
Why the G63 Can’t Be Fuel-Efficient
Several factors contribute to the low MPG:
- Weight: Over 5,300 lbs empty
- Aerodynamics: Boxy shape creates drag
- Tires: Large, grippy off-road tires increase rolling resistance
- Suspension: Adaptive air suspension adds complexity and weight
Even Mercedes admits this isn’t a Prius. But it’s not trying to be—it’s a statement vehicle first, efficient second.
Comparing MPG: G63 AMG vs. Other Luxury SUVs
If you’re shopping for a luxury SUV, you might compare the G63 AMG to models like the BMW X7, Audi Q8, or Range Rover. Here’s how the G63 stacks up in terms of fuel economy:
| Vehicle | Combined MPG | Engine | Horsepower |
|---|---|---|---|
| Mercedes G63 AMG | 11-15 | 4.0L V8 Twin-Turbo | 577 HP |
| BMW X7 xDrive40i | 21-22 | 3.0L Inline-6 Turbo | 335 HP |
| Audi Q8 55 TFSI | 20-22 | 3.0L V6 Turbo | 335 HP |
| Range Rover Sport HSE | 17-19 | 3.0L Supercharged V6 |
As you can see, the G63 has significantly lower MPG than many peers. But again, it trades efficiency for raw power, off-road capability, and brand prestige.
When Does the G63 Shine in Efficiency?
While not efficient overall, the G63 can surprise on long highway drives. At 70 mph with cruise control engaged, some drivers report 17-18 MPG. That’s because higher speeds reduce the time spent idling and allow the engine to run in its optimal range.
Also, if you avoid heavy towing or off-roading, you’ll preserve more of your MPG. Think of it like a sports car—you don’t expect great gas mileage when flooring it, but steady cruising helps.
Tips to Improve Your Mercedes G63 AMG MPG
Yes, the G63 AMG isn’t going to win any green awards. But there are smart ways to squeeze a few extra miles out of each gallon. Here are practical tips from mechanics and long-term owners:
Use Eco Mode
Every G63 comes with multiple driving modes, including ECO. This mode adjusts throttle response, shifts earlier, and reduces power steering assist. It won’t turn your G63 into a hybrid, but you may see 1-2 MPG improvement.
Maintain Proper Tire Pressure
Underinflated tires increase rolling resistance. Check your tire pressure monthly—especially important since the G63 often sits on large wheels. The recommended PSI is usually listed on the driver’s side door jamb.
Avoid Excessive Weight
Each 100 pounds of extra cargo or passengers reduces MPG by about 1-2%. If you’re not towing or camping, keep the interior light. Remove roof racks when unused—they create drag.
Plan Smart Routes
Cold starts consume more fuel. Try to combine errands into one trip. Also, avoid rush-hour traffic when possible—stop-and-go driving drops MPG dramatically.
Regular Maintenance Matters
A clean air filter, fresh oil, and properly functioning oxygen sensors all help the engine run efficiently. Follow Mercedes’ maintenance schedule religiously. A misfiring spark plug can drop MPG by 5% or more.
Consider Fuel Additives Sparingly
Some drivers swear by fuel injector cleaners. While they can help maintain performance, results vary. Use them only if you notice rough idling or reduced power—not as a regular fix.
Real Owner Experiences: What to Expect in Daily Life
We spoke with several G63 AMG owners across the U.S., and their stories highlight both the joy and cost of ownership. Here’s a snapshot:
- Sarah, Texas: “I average 12 MPG in Dallas traffic. It’s expensive, but I love the look and sound. I try to use eco mode on weekends.”
- Mike, Colorado: “Off-roading drops me to 9 MPG, but on mountain roads? I hit 18 MPG. It’s worth it for the views.”
- Lena, Florida: “I bought it for family trips. With kids and gear, I get 10-11 MPG. Gas costs add up, but so do memories.”
Most agree: the G63 AMG is a lifestyle vehicle. You pay for the experience, not just transportation.
The Future: Will the G63 Ever Get Better MPG?
Mercedes has hinted at an electric future. Rumors suggest a fully electric version called the EQG could arrive by 2024 or 2025. If it happens, it might offer similar performance with zero emissions and potentially better efficiency.
But until then, the gas-powered G63 AMG remains a legend. And while it may not be the most efficient SUV, it’s arguably the most iconic.
Conclusion: Is the Mercedes G63 AMG Worth the Fuel Cost?
In short: yes—if you value performance, exclusivity, and unmistakable presence. The Mercedes G63 AMG MPG isn’t great, but it’s realistic for a car this powerful and heavy. With smart driving and maintenance, you can stretch each tank further.
Just don’t buy it expecting to save money on gas. Instead, embrace the roar, the craftsmanship, and the envy of every driveway. After all, true luxury isn’t measured in MPG—it’s measured in moments.
Frequently Asked Questions
How many miles per gallon does a Mercedes G63 AMG get?
The Mercedes G63 AMG typically achieves 11-15 MPG combined, depending on driving conditions and model year. City driving averages 12-14 MPG, while highway driving can reach 16-18 MPG.
Why is the G63 AMG so inefficient with fuel?
The G63 AMG is heavy (over 5,000 lbs), has poor aerodynamics, uses large off-road tires, and packs a powerful V8 engine—all factors that reduce fuel efficiency.
Can eco mode help improve MPG in the G63 AMG?
Yes, using eco mode can modestly improve fuel economy by up to 2 MPG by adjusting throttle response and shift points to favor efficiency over performance.
How does the G63 AMG compare to other luxury SUVs in fuel economy?
The G63 AMG has significantly lower MPG than rivals like the BMW X7 (21-22 MPG) or Audi Q8 (20-22 MPG), trading efficiency for power and off-road capability.
Does towing affect the G63 AMG’s MPG?
Yes, towing drastically reduces fuel efficiency—often dropping MPG below 10. It’s best avoided unless absolutely necessary.
Are there plans for a more fuel-efficient version of the G63 AMG?
Mercedes is reportedly developing an all-electric EQG model, but no official timeline or fuel-efficient hybrid version has been confirmed for the current G63 platform.