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Old 08-14-2019, 11:42 PM
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JHZR2 JHZR2 is offline
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Join Date: Jan 2002
Location: New Jersey
Posts: 4,029
John Deere Cool Gard II is a superior option now that MB doesn’t offer G-05, but rather G-48, which has 2-EH, a concerning additive.

Granted, G-05 can be had in lots of places so has great availability. G-05 is great stuff but the Cool Gard II is a newer chemistry and possibly better especially for mixed metal engines.

I agree with the comments to do a flush. At minimum remove the block drain and then fill
And drain the system with distilled water. Then reinstall and use the right coolant of your choice.
Current Diesels:
1981 240D (73K)
1982 300CD (162k)
1991 350SD (113k)

Past Diesels:
1983 300D (228K)
1985 300D (233K)
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