Proper coolant

[teahead]

I'm gathering people recommend either the MB coolant, or Zerex-G05?


Is the MB Coolant similar to this expensive stuff?

https://www.fcpeuro.com/products/nf-engine-coolant-antifreeze-g001100-15l?ads_cmpid=1586103033&ads_adid=62588326769&ads_matchtype=&ads_network=g&ads_creative=298122218785&utm_term=&ads_targetid=pla-323134563770&utm_campaign=&utm_source=adwords&utm_medium=ppc&ttv=2&gclid=Cj0KCQjwo7foBRD8ARIsAHTy2wnWJVOPZ-FmCJtgfNsxpXMskkf3v1qnficlMJazAGeQBy3jXEkE4pEaAqrGEALw_wcB


I put that stuff in my 1990 300CE.

About to replace the thermostat and flush the coolant.  No idea how long it's been since I bought this new car.