11/3/2023 0 Comments Dexcool coolant ford![]() If you choose to continue using green, just check the alkalinity more often. If you started off with green, GM recommends switching to Dex-Cool in their technical service bulletins. OEM style additives designed for use with the green antifreeze (propylene glycol) may reduce the durability of Dex-Cool. ![]() These additives may cause gumming of the antifreeze. They originated in Euro/Asian markets and are not compatible with Dex-Cool. Also make sure to stay away from 'organic based' rust inhibitor additives. If your vehicle came with the inferior green stuff (propylene glycol), you must do a complete and thorough flush before switching to Dex-Cool. Concentrations greater than 67 percent or less than 50 percent are not recommended. For maximum protection against freezing in extremely cold areas a 60 percent solution (3 parts anti-freeze/2 parts water) can be used. Longer lasting (Dex-Cool has been shown to remain above 95% of its original concentration after 150,000 miles in automobiles)įor optimum year round protection against freezing, boiling and corrosion, a 50 percent Dex-Cool solution (1 part anti-freeze/1 part water) is recommended.100% biodegradable in its pure unused condition.It is Nitrite-, borate-, phosphate-, nitrate- and amine-free.Contains NO silicates, resulting in longer lasting water pump and engine seals longer shelf life.Havoline had the original patent on Dex-Cool and manufactures it for GM. I also have contacted GM and DC service departments to verify this information and they certify it is 100% accurate as of their October 2002 technical publications.ĭex-Cool (ethylene glycol) is identical to the Chrysler & General Motors factory fill. I have tested the below information thoroughly to be accurate on my own GM and Daimler-Chrysler vehicles. The following information has been gathered by myself through contacts in the automotive industry and my personal mechanical experience. Back to "Maintenance" All about Dex-Cool®
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