Zerex G-05 coolant, which is the same as US-spec MB coolant (but much cheaper), is rated for 5 years/100,000 miles. And you should change it every 3 years anyhow. So why spend the extra $$$ on KFM...whatever it is?
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'01 SLK320, '79 450SL & '01 C320 -- What? 3 Mercedes? I am DEFINITELY crazy!!!
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