The 2001 Mercedes-Benz S55 AMG is a masterpiece of automotive engineering, blending luxury with raw performance. Powered by the iconic 5.5-liter M113 V8 engine, this vehicle demands lubricants that can handle extreme thermal stress and high RPM operation. Proper maintenance is critical for preserving the engine’s longevity and ensuring that the oil filter, transmission, cooling system, and braking components continue to perform at the highest levels. Using the correct fluids prevents premature wear, sludge buildup, and overheating, which are common issues in high-performance European vehicles that see rigorous use.
Recommended AMSOIL Products
For the 2001 Mercedes-Benz S55 AMG, selecting the right lubricant is the first step in effective maintenance. The following AMSOIL products are specifically designed to meet or exceed the requirements of this European vehicle, ensuring superior protection and extended service intervals.
- AMSOIL 5W-40 FS 100% Synthetic European Motor Oil – A precise blend of synthetic base oils and premium additives formulated for the unique demands of European gasoline and diesel vehicles. It is an excellent choice for protecting your S55 AMG engine across a wide range of temperatures.
- AMSOIL 0W-40 FS 100% Synthetic European Motor Oil – Offers superior cold-flow performance and high-temperature stability, ideal for drivers in varying climates who need maximum protection during cold starts and heavy operation.
- AMSOIL Oil Filter – Designed with filtering efficiency of 99 percent at 20 microns, this filter reduces engine wear by keeping harmful contaminants out of the lubrication system while maintaining low flow restriction.
- AMSOIL Passenger Car & Light Truck Antifreeze & Coolant – A unique OAT formulation that exceeds OEM requirements, providing up to 150,000 miles of protection for all cooling system metals, gaskets, and hoses while remaining compatible with other coolant colors.
- AMSOIL Signature Series Fuel-Efficient 100% Synthetic Automatic Transmission Fluid – Withstands the rigors of the S55 AMG’s automatic transmission, remaining fluid in sub-zero temperatures and offering reserve protection during heavy towing or challenging driving conditions.
- AMSOIL DOT 3 and DOT 4 100% Synthetic Brake Fluid – Provides excellent ABS and traction-control responsiveness with stable viscosity over a wide temperature range, ensuring consistent brake pedal feel and safety.
Engine Oil and Filtration
The heart of the 2001 S55 AMG is the 5.5-liter M113 V8 engine. When performing an oil change, the system holds approximately 7.9 quarts of oil, including the AMSOIL Oil Filter replacement. If your vehicle is equipped with an oil cooler, additional fluid may be required if the cooler is drained during the service. Always allow the engine to sit for five minutes after refilling or shutting down to ensure an accurate oil level reading on the dipstick. The drain plug should be torqued to 22 ft/lbs to ensure a secure seal.
AMSOIL offers two primary viscosity grades for this engine: 5W-40 and 0W-40. The 5W-40 FS 100% Synthetic European Motor Oil is a robust choice for general driving conditions, featuring a European formula that balances performance with fuel economy. For those operating in extremely cold climates, the 0W-40 FS 100% Synthetic European Motor Oil provides superior cold-temperature flow characteristics, reducing wear during startup when the engine is most vulnerable. Both oils are designed to handle the high thermal loads of a supercharged or high-performance naturally aspirated V8, preventing breakdown and oxidation under stress.
Filtration is just as critical as the oil itself. The AMSOIL Oil Filter (EA15K39) provides superior filtration efficiency compared to many standard OEM filters, capturing small wear-causing contaminants that can damage bearings and cylinder walls. Alternatively, the WIX Oil Filter (51226) and MANN-FILTERS Oil Filter (HU7185X) are also recommended options, featuring premium media that improves upon original equipment standards. These filters ensure that the oil remains clean and effective throughout the extended service life supported by synthetic technology.
Transmission and Differential Care
The automatic transmission in the S55 AMG requires fluid that can handle high torque loads and temperature fluctuations. The 5-speed 722.6 transmission has a total fill capacity of 9.6 quarts. For this application, AMSOIL recommends the Signature Series Fuel-Efficient 100% Synthetic Automatic Transmission Fluid or the OE Fuel-Efficient 100% Synthetic Automatic Transmission Fluid. Both products are engineered to protect against wear, sludge, and temperature-related problems, ensuring smooth shifting and extended transmission life. The Signature Series formulation is particularly noted for its ability to remain fluid in sub-zero temperatures while providing reserve protection during heavy use and abuse.
The differential lubrication for the S55 AMG requires careful attention as well. The rear differential requires a specific capacity of 3.4 pints. While the source documentation does not list a specific AMSOIL gear lube product code for this exact application, ensuring the correct viscosity and EP (Extreme Pressure) rating is vital for the longevity of the rear axle components, which are subjected to significant stress during spirited driving.
Brake, Cooling, and Steering Systems
Braking performance is paramount in a vehicle of this caliber. The S55 AMG requires DOT 4 plus fluid or products approved on Mercedes-Benz Sheet 331.0. AMSOIL DOT 3 and DOT 4 100% Synthetic Brake Fluid is an excellent substitute, offering stable viscosity that maintains consistent brake feel in hot and cold conditions. It ensures excellent responsiveness for both ABS and traction control systems, which are integral to the vehicle’s handling dynamics.
The cooling system must operate efficiently to prevent the engine from overheating, a risk in high-performance V8 engines. AMSOIL Passenger Car & Light Truck Antifreeze & Coolant is a pre-mixed 50/50 solution that protects all cooling system metals, gaskets, and hoses. It is free from phosphates, nitrates, and other additives that can cause corrosion in European cooling systems. For those preferring to mix their own, the Concentrated Propylene Glycol Antifreeze is a high-performance option that can be mixed with distilled water to meet specific regional temperature requirements.
Power steering fluid also plays a role in the vehicle’s comfort and control. AMSOIL 100% Synthetic Multi-Vehicle Power Steering Fluid is formulated for quiet operation, resisting heat to ensure long fluid life. It helps seals remain soft to prevent leaks and provides strong anti-wear protection, ensuring the steering system operates smoothly without noise or stiffness.
Additional Maintenance and Care
Beyond the essential fluids, there are several additives and care products that can enhance the performance and longevity of the 2001 S55 AMG. For fuel system maintenance, AMSOIL P.i.® Performance Improver Gasoline Additive is highly effective. It can restore up to 14% horsepower and clean GDI fuel injectors, helping to improve fuel economy and reduce the need for higher-octane fuel. This additive is compatible with capless fuel systems, making it convenient for use on the S55.
For vehicle owners who store their cars during the off-season, AMSOIL Gasoline Stabilizer helps keep fuel fresh for up to 12 months, fighting ethanol corrosion and preventing varnish buildup. Additionally, AMSOIL Engine Fogging Oil is designed to protect internal engine components from rust during long periods of inactivity. On the exterior, products like the Miracle Wash Waterless Wash and Wax Spray provide a protective finish without the need for water, while the Silicone Spray protects rubber components from cracking and drying out.
About the Vehicle
The 2001 Mercedes-Benz S55 AMG represents a pinnacle of the S-Class lineage, specifically tailored for enthusiasts who demanded both executive luxury and supercar performance. Based on the W220 chassis, this model was the first time the AMG division integrated their V8 engine directly into the S-Class sedan, rather than the E-Class. Under the hood lies the legendary 5.5-liter naturally aspirated M113 V8 engine, a powerplant renowned for its smooth power delivery and immense torque. This engine was a significant step forward in Mercedes-Benz’s engineering, offering a perfect balance of refinement and raw capability.
Owners of the S55 AMG appreciate its dual nature: it serves as a comfortable, quiet cruiser for daily commuting but transforms into a high-performance machine when the throttle is engaged. The vehicle’s reputation is built on its robust build quality and the distinctive styling cues provided by the AMG package, including unique wheels, aggressive body cladding, and sport-tuned suspension. This era of the S-Class is often considered a “golden age” for performance sedans, offering a driving experience that is both engaging and sophisticated. The car’s market position was unique, bridging the gap between a traditional luxury liner and a dedicated sports sedan, a segment that continues to thrive today.
Maintaining this vehicle requires a commitment to quality, as the mechanical systems are complex and the components are subjected to significant stress. Whether you are driving on the autobahn or navigating city streets, the right fluids ensure that the S55 AMG continues to perform as intended. By adhering to the recommended lubrication schedule and using high-performance synthetic products, owners can preserve the vehicle’s value and driving dynamics for years to come.