Join Date: Mar 2014
Location: Fort Collins Colorado
Mentioned: 0 Post(s)
I've heard that the Zerex G-05 is the only coolant Mercedes and BMW allow in their cars. It does have some silicates but evidently Merc, Chrysler and Ford are ok with it in their aluminum engines.
More info from another forum:
"G-05 is good stuff. I'm currently using it in my family's three vehicles--two BMW's and a GMC Sonoma. Car & Driver did a recent article on it.
I did a lot of research on antifreeze before deciding on G-05. It's readily available; it's approved for Mercedes, Chrysler and Ford; it doesn't have the problems of DexCool which forms a nasty mess if air enters the cooling system; and it's more compatible with other antifreeze formula than DexCool's Organic Acid Technology corrosion inhibitors. It may not be as good as the most recent European formulations such as G-48, but it's close. G-48 is what BMW uses as factory fill, but you can't buy it anywhere other than at the dealer (or at a Saab dealer). G-05 is better in corrosion tests than the other antifreezes, however. Check out Valvoline.com and click on through to the technical specs. There are PDF files on how their various antifreezes do on standard ASTM tests.
Be sure to flush out your system well before changing your system over."
Modificatious Neverenditis is a sickness I love to have
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