I have tested almost most of the knowed good brands for Anti-freez and coolant inclusing MB. I discovered that the best one is Mitsubishi original Anti-freez (Although I hate Mitsubishi to death). So I use arround 3~5 liters of the Mitsubishi original Anti-freez and the rest I add distilled water (battery water) for my 560SEL 1989 that have the ASR nightmare .

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Master Computer Engineer, A+, Network+, MCP/MCSA/MCSE 4/2k/2k3 - Messaging, MCTS, MCITP, MCT, Brainbench, ICDL and starting Ph.D

380SE 1984 <------- Totaled by flipping accident
300SE 1988 <------- Sold
Volvo S70 2000 <---- 4 family
Opel Omega 2002 <-- 4 family
560SEC 1989 <------ Sold
560SEL 1990 <------ Sold
560SEL 1991 <------ 4 my mother
560SEL 1989 <------ Sold
600SEL 1992 <------ Current

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