The 2022 Mercedes-Benz G63 4X4 Squared AMG is a formidable machine, featuring a 4.0L biturbo V8 engine (Engine Code 177.980 D) that demands the highest level of care. This unique off-road platform combines extreme power with aggressive suspension geometry, placing immense thermal and mechanical stress on all internal components. Proper lubrication is not merely a maintenance task; it is essential for preserving the integrity of the turbochargers, the complex transmission system, and the cooling circuits that keep this high-output engine operating within safe parameters.
Recommended AMSOIL Products
- AMSOIL 0W-30 MS 100% Synthetic European Motor Oil – This European-specific formula is designed for the precise tolerances of the 4.0L AMG engine, offering superior protection against turbocharger wear and high-temperature breakdown.
- AMSOIL Passenger Car & Light Truck Antifreeze & Coolant – A pre-mixed solution that protects the cooling system from extreme heat generated by the high-output V8 while preventing corrosion in aluminum and steel components.
- AMSOIL Propylene Glycol Antifreeze and Engine Coolant – A concentrated option for those who prefer to mix their own coolant, delivering extended service intervals and superior thermal stability for severe driving conditions.
- AMSOIL P.i. Performance Improver Gasoline Additive – Helps clean GDI injectors and prevent carbon buildup, restoring horsepower and improving fuel economy for this high-strung V8 engine.
When maintaining a vehicle of this caliber, the choice of fluid viscosity and chemistry is critical. The engine oil capacity for the 2022 Mercedes-Benz G63 4X4 Squared AMG is 10 quarts, including the filter replacement. Using a synthetic lubricant that meets the strict European standards ensures that the oil remains fluid during cold starts and maintains its protective film during the intense heat of high-RPM operation or off-road climbing. The torque specification for the metal oil drain plug is 15 ft/lbs, while plastic plugs should be tightened to 3 ft/lbs, making a proper seal with a new washer essential to prevent leaks. Following the manufacturer’s guidelines and utilizing high-performance synthetic fluids ensures that the engine’s internal components, including the pistons, bearings, and turbo shafts, are protected against wear and sludge accumulation.
Beyond the engine, the cooling system plays a vital role in the longevity of this vehicle. The G63 4X4 Squared operates in environments ranging from icy roads to scorching desert trails, creating extreme thermal cycles. The coolant capacity for this vehicle is substantial, with the Low Temperature Cooling Circuit (LTCC) holding 7 quarts and the High Temperature Cooling Circuit (HTCC) holding 14.5 quarts. AMSOIL Antifreeze formulations are designed to handle these vast temperature differentials without losing viscosity or protective properties. By preventing freezing and boiling, the coolant ensures that the engine maintains its optimal operating temperature, which is crucial for fuel efficiency and emissions control.
While the vehicle documentation may not always specify a particular filter brand for every model year, ensuring that the oil filter used is of high quality is paramount. A quality filter captures microscopic contaminants that can cause premature engine wear. Additionally, for vehicle owners who store their G63 during the off-season or during long periods of inactivity, the use of AMSOIL Gasoline Stabilizer can keep the fuel fresh for up to 12 months, preventing varnish and gum buildup in the fuel system. Similarly, AMSOIL Engine Fogging Oil can be used to coat internal engine components with a protective film, preventing rust and corrosion while the vehicle sits, ensuring that the engine is ready to start immediately when needed.
About the Vehicle
The 2022 Mercedes-Benz G63 4X4 Squared AMG is a rare and legendary variant of the iconic G-Class line. Built on an extended wheelbase and featuring a raised suspension, this model stands as one of the tallest and most capable SUVs ever produced by the German automaker. Unlike the standard G-Wagon, the 4X4 Squared version introduces a triple differential locking system and a significantly higher ground clearance, allowing it to tackle terrain that would leave other luxury SUVs stranded. It is designed for those who demand both extreme off-road capability and the high-performance characteristics of an AMG model.
At the heart of this beast is the M177 4.0-liter V8 biturbo engine, which delivers massive torque and horsepower. This engine code (177.980 D) is renowned for its responsiveness and power delivery, but it also generates significant heat. The driving character of the G63 4X4 Squared is unique; it combines the heavy, truck-like feel of a specialized off-road vehicle with the refined handling and speed of a luxury sports car. Owners appreciate its ability to dominate the toughest off-road trails while still offering a plush, quiet interior suitable for daily driving on city streets. The vehicle’s reputation is built on its ability to handle anything the road or wilderness throws at it, making it a favorite among collectors and off-road enthusiasts alike.
Despite its robust build, the G63 4X4 Squared faces specific mechanical challenges common to high-performance vehicles with complex suspension and turbocharging systems. One common issue is the high thermal stress placed on the engine and cooling system, which can lead to coolant breakdown or oil sludge if lower-quality fluids are used. Synthetic lubricants provide the necessary thermal stability to mitigate this risk. Another prevalent concern is carbon buildup in the intake valves and injectors, particularly in direct injection engines, which can lead to rough idling and reduced power. Regular use of performance gasoline additives helps keep these systems clean. Furthermore, the heavy-duty suspension components and undercarriage are susceptible to corrosion from road salt and mud, especially for owners who frequently drive off-road. AMSOIL Silicone Spray and AMSOIL Heavy-Duty Metal Protector can offer a vital layer of defense against this environmental damage. Finally, the complex turbocharger system requires oil that can handle rapid temperature changes without coking or degrading, making a high-quality European motor oil essential for maintaining turbo health and ensuring the engine performs at its peak.