When green antifreeze used in old 91 300D IDI it had the caveatting problems and foamed the antifreeze, with the GO5 no problem. I suspect the MB's are not suffering the problem like the Ford or Dodge large diesels with twice the displacement and higher compression ratio's.

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'10 Chrysler T&C Stow-N-Go White. Grandpa's ride.

'13 Chrysler 200 Touring Candy Red. Grandma's ride.

Age and cunning will always over come youth and vigor.