Questions like these are very good ones. For me, it's not a cost issue at all, but an issue of blind faith. If someone tells me that I absolutely must use product A for something, my natural response is "Why?". I find the answer, "Because I said so," not to be satisfactory. There is either a very good explanation why, or there is no reason that you must use product A.

Hopefully someone can provide a very good explanation why one MUST use MB factory coolant versus other brands that are formulated for aluminum engines.

Brett

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1997 S600 sedan