Maintaining the fluid levels and replacing them with high-quality synthetics at recommended intervals is crucial for a vehicle of this caliber. The engine oil capacity for the 2021 AMG GT is 7.4 quarts when including a filter change. It is important to note that after refilling, you must check the oil level to ensure it is within the correct range. The drain plug torque specification is 22 ft-lbs, and you should replace the drain plug seal during every service to prevent future leaks. By selecting the correct viscosity, such as the 5W-40 or 0W-40 options available from AMSOIL, you ensure that the engine receives proper lubrication during cold starts and extreme heat, preserving the turbochargers and internal components.
Beyond the engine, the cooling system is critical for a twin-turbocharged vehicle that generates immense heat. The cooling system requires either 7.7 quarts of LTCC (Long-Term Coolant Concentrate) or 15 quarts of HTCC (High Temperature Coolant Concentrate), depending on the specific configuration and fill method. AMSOIL offers both pre-mixed ethylene glycol formulations and concentrated propylene glycol options. These coolants are phosphate-, nitrate-, nitrite-, silicate-, borate-, and amine-free, which means they are safe for all cooling system metals and prevent corrosion without the abrasive effects of traditional silicate additives. This is particularly important for the aluminum components found in modern European engines.
Brake and Steering Fluid Maintenance
For the braking system, the 2021 AMG GT requires a DOT 4 Plus fluid that meets or exceeds the MB Sheet 331.0 specifications. AMSOIL‘s synthetic brake fluid is an ideal substitute, offering a high boiling point that prevents brake fade during spirited driving on the track or steep mountain descents. Unlike conventional brake fluids that can absorb moisture and lower the boiling point over time, the synthetic formula maintains its viscosity and stability, ensuring the ABS and traction control systems remain responsive. This fluid is compatible with capless fuel systems and other modern vehicle requirements.
The power steering system also benefits from a high-performance synthetic fluid. Using a product like AMSOIL‘s Multi-Vehicle Power Steering Fluid helps maintain soft seals to prevent leaks, a common issue as vehicles age. It resists heat for long fluid life and offers excellent low-temperature performance, ensuring quiet and smooth operation regardless of the weather conditions. This fluid is formulated to reduce friction and provides strong anti-wear protection, which is essential for the steering rack and pump components.
Engine Oil and Filter Specifications
When selecting an engine oil, the choice between 5W-40 and 0W-40 depends largely on your specific driving conditions and the ambient temperature in your region. Both viscosities are suitable for all temperatures, but the 0W-40 may offer slightly better cold-start protection, while the 5W-40 is an excellent general-purpose choice for European performance vehicles. The AMSOIL 5W-40 FS oil is designed with a precise blend of synthetic base oils and premium additives that specifically target the needs of gasoline, diesel, and hybrid European vehicles. Similarly, the 0W-40 FS oil provides comparable protection with a slightly lower viscosity at cold temperatures, ensuring rapid circulation upon startup.
It is worth noting that while specific oil filters are not currently recommended in the product lookup for this vehicle, it is still important to use a high-quality filter if one is installed. The oil change interval can be extended with AMSOIL products, potentially up to 25,000 miles or one year, depending on driving conditions. However, for severe driving conditions often associated with AMG models, such as track use or frequent short trips, more frequent changes are advisable to ensure the vehicle remains in pristine condition.
Seasonal and Additional Protection
For owners who store their vehicles seasonally, maintaining fuel stability and protecting internal components during storage is vital. AMSOIL Gasoline Stabilizer helps keep fuel fresh for up to 12 months, preventing varnish and gum buildup caused by ethanol corrosion. This is particularly useful for owners who may not drive their AMG GT daily. Additionally, the AMSOIL Engine Fogging Oil provides a highly effective rust preventive coating for internal engine components during long periods of inactivity, ensuring that the engine starts smoothly when the vehicle returns to service.
For those who want to maximize performance and fuel economy, AMSOIL P.i. Performance Improver is a valuable fuel additive. It can restore up to 14% of lost horsepower and cleans GDI fuel injectors back to 100% flow rate after just one tank of treated fuel. This additive also helps prevent carbon buildup and reduces the need for higher-octane fuel, which can be a significant cost saving for performance-oriented drivers.
About the Vehicle
The 2021 Mercedes-Benz AMG GT is a testament to the brand’s commitment to high-performance sports cars. Built on the AMG-specific platform, this coupe represents the pinnacle of what the brand does best: combining raw power with everyday usability. The heart of this machine is the 4.0-liter V8 biturbo engine, a powerhouse that delivers over 500 horsepower and a substantial amount of torque. This engine code, 178.980 A, is found in the standard GT and GT models, distinguishing it from the more powerful GT C and GT R variants which feature different calibrations and often unique hardware.
Owners of the 2021 AMG GT appreciate the vehicle for its aggressive styling, which includes a distinctive front grille, sculpted lines, and a wide stance that commands attention on the road. Inside, the cabin is a blend of luxury and sportiness, featuring high-quality materials, advanced technology, and driver-focused ergonomics. The car is designed to be a dual-purpose vehicle, capable of handling daily commutes with comfort while delivering thrilling performance on the track or winding mountain roads.
Despite its robust engineering, the AMG GT is not without its potential maintenance challenges, especially given the high-performance nature of its components. One common issue that owners face is carbon buildup in the intake valves, a characteristic of direct injection engines. Regular use of fuel system cleaners and high-quality gasoline additives can help mitigate this issue, maintaining optimal airflow and engine performance. Another potential area of concern is the cooling system, which is under significant stress during high-performance driving. Overheating or coolant degradation can lead to costly repairs, making the use of high-quality, long-life coolants essential for preventing corrosion and ensuring thermal stability.
Sensor failures and electrical gremlins are also occasionally reported in high-tech vehicles like the AMG GT. While these are often unrelated to lubrication, maintaining a clean and well-lubricated electrical system with appropriate protectants can help ensure longevity. Additionally, brake fade can be a concern during spirited driving on the track. Using a high-performance synthetic brake fluid with a high boiling point can significantly reduce the risk of brake fade, ensuring that the braking system performs reliably when it is needed most. By addressing these common areas of concern with the right fluids and additives, owners can enjoy the full potential of their AMG GT for years to come, preserving its value and performance characteristics.