2003 Mercedes CL-Class Owner's Manual - Page 339
2003 Mercedes CL-Class Manual
Page 339 highlights
Technical data Fuels, coolants, lubricants etc. Engine oils Engine oils are specifically tested for their suitability in our engines. Therefore, use only engine oils recommended by Mercedes-Benz. Information on recommended brands is available in the Factory Approved Service Products pamphlet, or at your authorized Mercedes-Benz Center. Please follow FSS recommendations for scheduled oil changes. Failure to do so could result in engine damage not covered by the Mercedes-Benz Limited Warranty. 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. Air conditioning refrigerant R-134a (HFC) refrigerant and special PAG lubricating oil is used in the air conditioning system. Never use R-12 (CFC) or mineral-based lubricating oil, otherwise damage to the system will occur. 339
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