Keeping your 2008 Mercedes-Benz CL600 running at its peak requires fluids that meet the stringent demands of its high-performance 5.5-liter V12 engine. This luxury grand tourer, equipped with a 12-cylinder twin-turbo setup, places significant stress on all lubrication systems. Using the correct viscosity and formulation is essential not only for maintaining the delicate tolerances of the engine but also for ensuring the longevity of the transmission and cooling systems. AMSOIL synthetic lubricants are specifically engineered to exceed the requirements of these sophisticated European vehicles, offering superior protection against the heat and stress generated by the high-output engine.
Recommended AMSOIL Products
- AMSOIL 5W-40 FS 100% Synthetic European Motor Oil – An ideal choice designed 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 – Another top-tier European formula option that provides exceptional protection and performance in extreme temperatures for your V12 engine.
- AMSOIL Signature Series Fuel-Efficient 100% Synthetic Automatic Transmission Fluid – Withstands the rigors of heavy towing and elevated temperatures while providing fluid performance in sub-zero conditions for the 722.6 transmission.
- AMSOIL OE Fuel-Efficient 100% Synthetic Automatic Transmission Fluid – A fuel-efficient option that protects against wear and ensures smooth operation in the automatic transmission system.
- AMSOIL Passenger Car & Light Truck Antifreeze & Coolant – A unique poly-organic acid (OAT) formulation that exceeds OEM requirements, offering protection for up to 150,000 miles or 5 years.
- 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, meeting MB Sheet 331.0 standards.
- AMSOIL 100% Synthetic Multi-Vehicle Power Steering Fluid – Reduces friction, helps seals remain soft to prevent leaks, and offers strong anti-wear protection for quiet operation.
The engine is the heart of your CL600, and with a displacement of 5.5 liters and a complex turbocharged architecture, it requires a lubricant that can handle high heat and shear stress. The recommended oil capacity for the 2008 Mercedes-Benz CL600 with the 5.5L 12-cylinder engine (Engine Code 275.95 Y Turbo) is 9.5 quarts when changing the oil with a filter. It is important to note that on models equipped with an oil cooler, additional oil may be needed if the cooler is drained during the service. After refilling the engine, you should allow approximately five minutes to pass before turning the engine off and then checking the oil level to ensure an accurate reading. When tightening the oil drain plug, ensure it is torqued to the manufacturer’s specification of 22 ft/lbs to prevent leaks or stripped threads.
Moving beyond the engine, the transmission plays a critical role in delivering the power of the V12 to the road. The 2008 CL600 utilizes a sophisticated 722.6 transmission. For a complete performance oil change, the total fill capacity for the 5-speed 722.6 transmission is 8.1 quarts. Maintaining this fluid is vital for the longevity of the gearbox, as synthetic transmission fluids like AMSOIL Signature Series Fuel-Efficient 100% Synthetic Automatic Transmission Fluid or AMSOIL OE Fuel-Efficient 100% Synthetic Automatic Transmission Fluid provide protection against wear, sludge, and temperature-related issues that can arise during severe driving conditions. These fluids are designed to remain fluid even in sub-zero temperatures while withstanding the high heat generated during heavy use or challenging terrain.
Thermal management is another area where the original equipment specifications must be met or exceeded. The cooling system for this vehicle has a substantial capacity of 15.9 quarts. Keeping the AMSOIL Passenger Car & Light Truck Antifreeze & Coolant at the proper level and mixture is essential to prevent the engine from overheating, especially under the stress of turbocharging. This product offers a 50/50 ethylene glycol pre-mix formulation that is phosphate, nitrate, nitrite, silicate, borate, and amine-free. This formulation protects all cooling system metals, gaskets, and hoses, ensuring long-term durability for up to 150,000 miles or five years. Alternatively, the concentrated AMSOIL Propylene Glycol Antifreeze and Engine Coolant can be mixed with distilled water to achieve even higher protection standards, particularly for heavy-duty applications.
Braking and steering systems on a vehicle of this caliber demand precision and reliability. The 2008 CL600 requires a AMSOIL DOT 3 and DOT 4 100% Synthetic Brake Fluid that meets strict Mercedes-Benz specifications, specifically MB Sheet 331.0, which references DOT 4 plus fluids. AMSOIL DOT 3 and DOT 4 100% Synthetic Brake Fluid is an excellent substitute that provides a stable viscosity across a wide temperature range and ensures excellent responsiveness for ABS and traction control systems. For the power steering system, which operates under significant pressure, AMSOIL 100% Synthetic Multi-Vehicle Power Steering Fluid is recommended. This fluid reduces friction, keeps seals soft to prevent leaks, and resists heat for extended fluid life, contributing to a quiet and responsive steering feel.
About the Vehicle
The 2008 Mercedes-Benz CL600 represents the pinnacle of German engineering during the late 2000s. As the coupe variant of the S-Class, the CL-Class (Coupé Limousine) was designed to offer the ultimate in luxury performance driving. Powered by the M275 bi-turbocharged 5.5-liter V12 engine, this vehicle produces a substantial amount of power and torque, making it a formidable competitor in the ultra-luxury sports coupe segment. The engine code 275.95 Y Turbo refers to the specific iteration of this V12 powerplant, known for its smooth power delivery and the distinctive sound of a twelve-cylinder engine.
Owners of the CL600 typically seek a vehicle that combines the comfort of a limousine with the dynamic capabilities of a sports car. The platform, shared with the S-Class sedan, provides a robust foundation for handling, but the CL600’s stance and aerodynamic design give it a more aggressive road presence. The interior is crafted with the finest materials, offering a sanctuary of quiet and comfort even at high speeds. The 7-speed automatic transmission, paired with the powerful V12, ensures seamless acceleration. Because of the high performance and heavy use of electronic systems, such as active body control and sophisticated air suspension, maintaining the integrity of all fluid systems is crucial for the vehicle to perform as intended. Regular maintenance with high-quality AMSOIL synthetic lubricants helps preserve the value and reliability of this prestigious automobile, ensuring it continues to deliver the smooth, powerful ride it was designed to provide.
Additional Maintenance and Care
While the engine, transmission, and cooling systems require the most frequent attention, other aspects of vehicle care can also be improved with AMSOIL products. For seasonal storage, the AMSOIL Gasoline Stabilizer can help keep fuel fresh for up to 12 months, protecting against varnish, gum buildup, and ethanol corrosion. If the vehicle will be sitting for an extended period, the AMSOIL Engine Fogging Oil is an excellent preventative measure, creating a protective film on internal engine components to stop rust during inactivity. For those looking to maximize fuel economy and restore engine performance, the AMSOIL P.i. Performance Improver is a powerful gasoline additive that can restore horsepower and clean fuel injectors, including those on GDI engines.
For the exterior, maintaining the vehicle’s appearance is as important as mechanical maintenance. The AMSOIL Miracle Wash Waterless Wash and Wax Spray allows for easy cleaning that leaves a protective finish without the need for water. For those dealing with rust or corrosion concerns, especially in harsh climates, the AMSOIL Heavy-Duty Metal Protector provides a long-lasting, wax-like coating that protects steel, iron, aluminum, and brass surfaces from salt and moisture. Additionally, for engine cleaning, the AMSOIL Engine Degreaser is a professional-strength formula capable of removing the toughest grease and grime, while the AMSOIL Brake and Parts Cleaner safely removes contaminants from brake components to eliminate squeal and chatter. By utilizing these products alongside the primary lubricants, owners can ensure their 2008 Mercedes-Benz CL600 remains in top condition both under the hood and on the outside.