CL 55 AMG (215.374) V8-5.5L SC (113.991) (2004)
Engine Oil: Service Precautions
Engine Oil Additives
Engine Oil Additives:
Do not blend oil additives with engine oil. They may be harmful to the engine operation.
Damage or malfunctions resulting from blending oil additives are not covered by the Mercedes-Benz Limited Warranty.