1991 BMW coolant mixing error

I wouldnt feel safe with that combo.
I wouldnt use yellow and a combo of yellow and g05 is even less confidence inspiring.
but I'm not a bmw expert.

The whole yellow gold green orange speciality green etc can be confusing.
 
BMW/Tesla G-48 uses 2-EHA. Prestone Cor-Guard and Ford yellow also uses 2-EHA. You’ll be ok. I doubt benzoate and 2-EHA/sebacate will feud.
 
Thanks all, Keep in mind this is a 1991 BMW that came from factory with Green Coolant, so I don't think I need the BMW blue.

I will do the flush for peace of mind, but may have to wait until spring. I just put a new rad in and the block drain plug sprays coolant in all directions. Not a fun job...
 
I ran G-05 in my 1991 BMW for almost 190k on original cooling system components. I don’t know what’s in the motor craft yellow, so that’s the wild card. I’d probably at least do one radiator drain and filll with g-05. It’s easy enough and cheap enough.
 
I used plain old Prestone green in my 2001 525i for 100,00 miles and 15 years. No issues. Replaced the water pump once.

Xerex G05 is a good choice.
 
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