I have a 350SD awaiting a head gasket.

I’ve done a lot of research, since this is a mixed metal engine. I’m comfortable with G-05, but I prefer John Deere Cool Gard II in the aluminum/iron engine. That’s what I’ll be running.

I’ve also shifted my two Cummins trucks to it and it has worked great and stayed clear and clean.

You can get it shipped free. It is not that high of a cost to buy.

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Current Diesels:
1981 240D (73K)
1982 300CD (169k)
1985 190D (169k)
1991 350SD (116k)
1991 350SD (206k)
1991 300D (228k)
2008 ML320 CDI (199k)
1996 Dodge Ram CTD (442k)
1996 Dodge Ram CTD (267k)

Past Diesels:
1983 300D (228K), 1985 300D (233K), 1993 300D 2.5T (338k), 1993 300SD (291k)