Guys ya'll can run the green stuff if you want.
As for me I plan on keeping my cars a long time
and don't want to have NECESSARY problems with them.
My expierence is with truck engines and they have a problem with something called electrolysis. The aluminum parts
are eaten away and end up in the radiator
and elsewhere. For years we have had to run an
"additive" in the green antifreeze to prevent this.
Newer antifreeze formulations are now out that are
red in color and have the additive already mixed in. I
suspect MB has the additive in their formulation as they
engineer their cars and expect them to run for many hundreds of
thousands of miles. The 617 engines have aluminum parts in
the cooling system that are susceptible to electrolysis.

It just is not worth the risk IMHO.

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1980 300SD Manganese Brown Metallic Clearcoat 248k
1979 300SD White 148 k
1984 300D Silver project car for daughter
1982 300D wrecked
1980 300SD 310K not running