paulo57509 Posted February 12, 2003 Report Share Posted February 12, 2003 The new coolant that Daimler-Chrysler and Ford are using is Glysantin G-05. It's a HOAT coolant (Hybrid Organic Acid Technology). It has some silicates in it. Supposedly Mercedes did a study on OAT coolant and found cavitation around the water pump so they added silicates. They've been using this coolant since the late 80's.Glysantin is also safer when mixed with the "old stuff". Dex-cool, when mixed with the "old stuff", will cause ACCELERATED aluminum corrosion so it's not recommended to mix it. The old stuff can be mixed with Glysantin with only a decrease in service life. There should be no problems using Glysantin G-05 in a W-body, but I don't know that it's superior to Dex-cool either. From everything I've read, GM has been designing their water pumps to minimize cavitation for a number of years. Here's a link to the new coolant (manufactured by Valvoline) http://www.valvoline.com/pages/products/product_detail.asp?Product=10 This link should clarify (or muddy) the topic sufficiently. http://www.babcox.com/editorial/us/us60024.htm Quote Link to comment Share on other sites More sharing options...
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