Keeping the 2021 Mercedes-Benz AMG GT 63 running at its peak requires lubricants that meet the rigorous demands of its high-performance 4.0L twin-turbo V8 engine. This powerful machine generates significant heat and operates under extreme pressures, making standard mineral oils insufficient for long-term durability. Selecting the right synthetic fluids ensures optimal protection against wear, maximizes fuel economy, and extends the service intervals between maintenance schedules. Whether you are pushing the vehicle to its limits on a track or navigating daily city traffic, the correct lubrication strategy is essential for maintaining the car’s legendary performance and reliability.
Recommended AMSOIL Products
For the 2021 Mercedes-Benz AMG GT 63 with the 4.0L 8-cylinder engine (Code 177.980.0), AMSOIL provides a comprehensive selection of synthetic lubricants designed to exceed original equipment manufacturer requirements. The following products are specifically recommended to handle the severe operating conditions of this high-performance vehicle.
- AMSOIL 5W-40 FS 100% Synthetic European Motor Oil – This fluid is formulated for the unique demands of gasoline, diesel, and hybrid European vehicles, featuring a precise blend of synthetic base oils and premium additives.
- AMSOIL 0W-40 FS 100% Synthetic European Motor Oil – An excellent choice for extreme temperature variations, providing the necessary viscosity to protect the engine’s sensitive components during rapid acceleration and high-speed driving.
- AMSOIL Passenger Car & Light Truck Antifreeze & Coolant – A unique poly-organic acid (OAT) formulation that protects cooling system metals, gaskets, and hoses while offering protection up to 150,000 miles or 5 years.
- AMSOIL Propylene Glycol Antifreeze and Engine Coolant – A concentrated option that greatly surpasses standards for metallic corrosion and erosion, requiring mixing with distilled water for a high-performance cooling solution.
- AMSOIL Signature Series Fuel-Efficient 100% Synthetic Automatic Transmission Fluid – Withstands the rigors of heavy towing, elevated temperatures, and challenging terrain, remaining fluid even in sub-zero conditions.
- AMSOIL OE Fuel-Efficient 100% Synthetic Automatic Transmission Fluid – Provides essential protection against wear for vehicles that require OE specifications, ensuring smooth gear shifts and extended transmission life.
- AMSOIL DOT 3 and DOT 4 100% Synthetic Brake Fluid – Delivers excellent ABS and traction-control responsiveness with a stable viscosity over a wide temperature range, compatible with MB Sheet 331.0 standards.
Engine Oil and Filter Specifications
The heart of the 2021 AMG GT 63 is the 4.0L 8-cylinder engine, code 177.980.0, which utilizes a twin-turbocharger system. This configuration demands an oil that maintains stability under intense heat and shear stress. The recommended oil capacity for a complete change, including the filter, is 9.5 quarts. When performing this service, it is crucial to adhere to the correct torque specifications for the oil drain plug to prevent damage or leaks. For plastic drain plugs, the torque should be set to 3 ft/lbs, while metal drain plugs require 22 ft/lbs. After refilling, owners should always check the oil level to ensure the proper amount has been added.
While no specific oil filter recommendations were found in the current data, maintaining the integrity of the filtration system is vital for removing contaminants and metal particles generated by the high-output engine. Using AMSOIL synthetic motor oil provides superior filtration capabilities, as the oil itself traps and holds microscopic contaminants that can degrade the performance of the engine over time. The European formula features a precise blend of synthetic base oils that resist breakdown, ensuring that the engine remains clean and lubricated even during extended service intervals.
Cooling System and Fluid Capacities
Maintaining the thermal stability of the AMG GT 63 is just as important as lubricating the moving parts. The cooling system for this vehicle operates under significant pressure due to the heat generated by the twin-turbo V8. There are two primary antifreeze options available to ensure optimal heat transfer and corrosion protection. The LTCC system requires 6.8 quarts, while the HTCC system requires a larger capacity of 16.2 quarts. Owners should select between the pre-mixed ethylene glycol formulation or the concentrated propylene glycol option based on their specific maintenance preferences and the vehicle’s service history.
The AMSOIL Passenger Car & Light Truck Antifreeze & Coolant is a 50/50 pre-mix that is phosphate, nitrate, nitrite, silicate, borate, and amine-free, making it safe for all cooling system metals, gaskets, and hoses. For those who prefer mixing their own solutions, the Propylene Glycol Antifreeze offers a concentrated option that provides protection up to 150,000 miles or 5 years in passenger cars and light trucks. This coolant is compatible with all other antifreeze and coolant colors, allowing for flexibility during top-offs or repairs.
Transmission and Differential Care
The transmission system in the AMG GT 63 experiences constant stress during acceleration and high-speed driving. AMSOIL offers two distinct transmission fluids designed to handle these conditions. The Signature Series Fuel-Efficient 100% Synthetic Automatic Transmission Fluid is ideal for those seeking maximum protection against wear and temperature-related problems. It remains fluid in sub-zero temperatures and provides reserve protection during heavy use. Alternatively, the OE Fuel-Efficient 100% Synthetic Automatic Transmission Fluid is formulated to meet specific OEM wear protection standards.
In addition to the transmission, the vehicle’s transfer case requires specific lubrication. The transfer case capacity is 1.5 pints, and proper torque is essential during the refill process. The fill plug torque is 10 ft/lbs, while the drain plug torque is 18 ft/lbs. Ensuring the correct fluid is used prevents slipping and wear in the transfer case components, maintaining the vehicle’s all-wheel-drive capabilities and performance dynamics.
Brake Fluid and Seasonal Maintenance
Brake fluid is a critical safety component in any high-performance vehicle. The 2021 Mercedes-Benz AMG GT 63 requires a fluid that meets MB Sheet 331.0 standards. AMSOIL DOT 3 and DOT 4 100% Synthetic Brake Fluid provides excellent responsiveness for both ABS and traction-control systems. It maintains a stable viscosity across a wide temperature range, ensuring consistent brake pedal feel whether the car is warming up on a cold morning or operating under heavy braking on a track day.
For owners who store their AMG GT 63 during seasonal periods, protecting the engine and fuel system from degradation is essential. AMSOIL Gasoline Stabilizer can keep fuel fresh for up to 12 months, protecting against varnish and gum buildup caused by ethanol corrosion. Additionally, AMSOIL Engine Fogging Oil provides a highly effective rust preventive to protect internal engine components during storage or long periods of inactivity, ensuring the engine starts smoothly and runs cleanly when the season returns.
Why Owners Like This Vehicle
The 2021 Mercedes-Benz AMG GT 63 is widely celebrated as one of the most formidable grand tourers on the market. Originally introduced to rival the Porsche 911 Turbo and Cadillac’s high-performance models, the AMG GT line has established a reputation for blending raw power with everyday usability. The GT 63 S specifically, with its 4.0-liter twin-turbo V8 engine, delivers an exhilarating driving experience characterized by immense torque and rapid acceleration. It is a car that demands respect on the road, capable of launching from zero to sixty in a time that rivals dedicated sports cars, yet it remains practical enough for daily commutes.
Owners appreciate the vehicle’s sophisticated engineering, which includes an all-wheel-drive system that provides exceptional traction in various weather conditions. The interior is equally impressive, featuring high-quality materials and advanced technology that cater to luxury-focused drivers. The design language of the AMG GT series is aggressive and distinct, with a low-slung profile and wide stance that screams performance even when stationary. This combination of luxury, technology, and brute force has made it a favorite among automotive enthusiasts who refuse to compromise on style or speed.
Despite its robust build, the high-performance nature of the AMG GT 63 means that maintenance is not a task to be taken lightly. One common issue reported by owners of high-output turbocharged Mercedes engines is the potential for carbon buildup on the intake valves, particularly in Direct Injection (GDI) systems. Over time, this carbon accumulation can restrict airflow and lead to reduced power, rough idling, and decreased fuel efficiency. Using an AMSOIL P.i.® Performance Improver Gasoline Additive is an effective solution to restore GDI fuel injectors to 100% flow rate and reduce the need for costly higher-octane fuel, helping to maintain the engine’s intended performance levels.
Another concern for these high-stress vehicles is the potential for sludge and deposit formation in the oil passages, which can lead to premature engine wear if not addressed. The extreme heat generated by the twin-turbo V8 can cause standard oils to break down faster than anticipated. By utilizing AMSOIL’s European Formula synthetic motor oils, owners can significantly reduce the risk of sludge buildup and ensure that the engine remains clean and lubricated. Furthermore, the intense heat from the turbochargers can sometimes lead to thermal degradation of the transmission fluid, causing harsh shifts or reduced efficiency. The high-temperature stability of AMSOIL transmission fluids helps prevent this degradation, extending the life of the transmission system. Finally, brake fade can be a concern during aggressive driving on tracks or mountain roads. The superior boiling point of AMSOIL’s synthetic brake fluid ensures consistent stopping power, even under the most demanding braking conditions, preventing the loss of pedal feel that can occur with conventional fluids. By addressing these specific vulnerabilities with high-quality lubricants, owners can ensure their AMG GT 63 continues to perform at its peak for years to come.
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