The 2008 Mercedes-Benz S63 AMG is a high-performance luxury sedan that demands precision engineering and premium lubricants to maintain its status as a driving masterpiece. Under the hood lies the legendary 6.3L V8 engine, a powerplant that delivers immense torque and requires oil that can withstand extreme thermal stress. While factory-fill oils may suffice for standard driving, AMSOIL synthetic lubricants provide superior protection against the unique demands of this high-output German engineering icon. Using the correct fluids ensures that the S63 AMG operates smoothly, resists wear during spirited driving, and maintains peak performance mile after mile.
Recommended AMSOIL Products
For the 2008 Mercedes-Benz S63 AMG, selecting the right synthetic motor oil is critical due to the engine’s high output and tight tolerances. The AMSOIL European motor oil line is specifically formulated to meet the rigorous standards required by Mercedes-Benz, offering a precise blend of synthetic base oils and premium additives.
- AMSOIL 5W-40 FS 100% Synthetic European Motor Oil – Engineered for the unique demands of European gasoline, diesel, and hybrid vehicles, this oil features a precise blend designed for maximum protection and performance.
- AMSOIL 0W-40 FS 100% Synthetic European Motor Oil – Offers excellent cold-start protection and high-temperature stability, ensuring the engine runs smoothly in all temperatures while exceeding manufacturer requirements.
- AMSOIL Passenger Car & Light Truck Antifreeze & Coolant – A unique poly-organic acid (OAT) formulation that protects all cooling system metals, gaskets, and hoses for up to 150,000 miles or 5 years.
- AMSOIL Propylene Glycol Antifreeze and Engine Coolant – A concentrated coolant that requires mixing with water, offering superior protection against corrosion and erosion while exceeding OEM standards.
- AMSOIL Signature Series Fuel-Efficient 100% Synthetic Automatic Transmission Fluid – Designed to withstand heavy towing, elevated temperatures, and challenging terrain, remaining fluid in sub-zero temperatures.
- AMSOIL OE Fuel-Efficient 100% Synthetic Automatic Transmission Fluid – Provides essential wear protection for the automatic transmission in severe driving conditions.
- AMSOIL DOT 3 and DOT 4 100% Synthetic Brake Fluid – Delivers excellent ABS and traction-control responsiveness with stable viscosity across a wide temperature range, meeting the specific requirements for this vehicle.
- AMSOIL 100% Synthetic Multi-Vehicle Power Steering Fluid – Helps seals remain soft to prevent leaks, resists heat, and offers excellent high-temperature protection for quiet operation.
The maintenance schedule for the S63 AMG is not one to be taken lightly. With a total oil capacity of 9.3 quarts (including filter change), the engine requires a significant volume of high-quality lubricant to ensure full coverage. It is worth noting that on models equipped with an oil cooler, additional oil may be needed if the cooler is drained. After refilling, it is crucial to allow at least five minutes before turning the engine off or checking the oil level to ensure accurate readings. The oil drain plug should be torqued to 22 ft/lbs to prevent leaks while avoiding damage to the aluminum pan.
Comprehensive Lubrication Guide for the 2008 S63 AMG
Engine Protection and Maintenance
When changing the oil in your S63 AMG, choosing between the 0W-40 and 5W-40 viscosities depends on your specific driving conditions and climate. Both AMSOIL FS 100% Synthetic European Motor Oils are designed to handle the extreme heat generated by the 6.3L V8. The synthetic formulation ensures superior flow at startup and maintains film strength even when the engine is pushed to its limits. The oil capacity is substantial, so ensure you have the correct quantity on hand. If your vehicle has an oil cooler, be aware that draining the cooler will require extra fluid to reach the proper level.
Transmission Fluid Specifications
The automatic transmission in the 2008 S63 AMG is a sophisticated component that requires fluid meeting specific specifications, such as 722.9 or SL057. There are different requirements depending on whether the vehicle has the A89 reduced-friction code, though both scenarios benefit from the advanced protection of AMSOIL transmission fluids. The total fill capacity is 9.3 quarts for the 7-speed transmission. AMSOIL‘s fuel-efficient synthetic transmission fluids remain fluid in sub-zero temperatures and provide reserve protection during heavy use, protecting your transmission from wear and sludge buildup.
Cooling System Efficiency
Keeping the engine temperature under control is vital for the longevity of your S63 AMG. The cooling system capacity for the 2008 model is approximately 11.8 quarts. AMSOIL offers two excellent antifreeze options. The Passenger Car & Light Truck Antifreeze & Coolant is a pre-mixed solution that provides protection for up to 150,000 miles or five years. Alternatively, the Propylene Glycol Antifreeze is a concentrated option that can be mixed with distilled water to reach the desired strength, offering extended protection for up to 150,000 miles or 5 years, and even longer for heavy-duty applications. Both formulations are phosphate-free, silicate-free, and compatible with all other coolant colors.
Brake and Power Steering Fluids
Braking performance is non-negotiable in a vehicle of this caliber. The S63 AMG requires DOT 4 plus fluid to maintain optimal responsiveness and stability. AMSOIL‘s DOT 3 and DOT 4 100% Synthetic Brake Fluid is an excellent choice that provides stable viscosity over a wide temperature range, ensuring consistent braking power even under hard cornering or emergency stops. For the power steering system, AMSOIL‘s 100% Synthetic Multi-Vehicle Power Steering Fluid helps keep seals soft to prevent leaks and offers strong anti-wear protection. This fluid ensures quiet operation and excellent performance in both hot and cold conditions.
Seasonal and Additional Care
Whether you are preparing your S63 AMG for storage or keeping it running year-round, AMSOIL offers a range of additives and cleaners to enhance performance. The AMSOIL P.i.® Performance Improver Gasoline Additive can help restore up to 14% horsepower and clean fuel injectors. For seasonal storage, the AMSOIL Gasoline Stabilizer keeps fuel fresh for up to 12 months, preventing varnish and gum buildup. The AMSOIL Engine Fogging Oil is ideal for protecting internal components during long periods of inactivity.
Regular maintenance goes beyond just changing fluids. The AMSOIL Heavy-Duty Metal Protector can be used to coat external metal surfaces, protecting against rust, salt, and moisture. For cleaning, the AMSOIL Engine Degreaser effectively removes grease and grime from the engine bay, while the AMSOIL Brake and Parts Cleaner ensures that components are free of contaminants for safe operation. To keep the exterior looking pristine, the AMSOIL Miracle Wash Waterless Wash and Wax Spray provides a fantastic shine and UV protection without the need for water.
About the Vehicle
The 2008 Mercedes-Benz S63 AMG represents the pinnacle of automotive luxury and performance during its era. Part of the S-Class lineup, known for its safety and innovation, the S63 AMG variant injects a distinct sportiness into the plush sedan body. It was powered by the 6.3-liter M156 V8 engine, a naturally aspirated powerhouse that produced substantial horsepower and torque figures, making it one of the fastest sedans of its time. Unlike many of its rivals that turned to turbocharging, the AMG team opted for displacement and precise engineering to deliver linear power delivery and a thrilling exhaust note.
This vehicle was part of the W221 generation, which ran from 2006 to 2013. The S63 AMG was a halo model for the S-Class, offering a driving experience that blended the refinement of a limousine with the aggressive dynamics of a sports car. Owners of the S63 AMG often appreciate its robust build quality, high-tech interior, and the ability to provide a comfortable ride even when driven with enthusiasm. The 7-speed automatic transmission was specifically calibrated to handle the engine’s torque, ensuring smooth power delivery. As a German engineering flagship, the S63 AMG was designed to compete directly with the Cadillac STS-V and the BMW M5, offering a unique blend of luxury and raw power that few other sedans could match.