Is it ok to mix the gold engine coolant with universal coolant? on 2009 Ford Edge

My ford originally had the motorcraft premium gold engine coolant, it was a little low so I topped it off with the green universal coolant; is that okay??

by in Katy, TX on February 10, 2013
3 answers
ANSWER by on February 10, 2013
as long as it is unversal coolant but if it is just regular colant I would not mix it
ANSWER by on February 10, 2013
maybe it is okay since it is universal
ANSWER by on February 11, 2013
The answer is a definite no. Ford specifically states in their manuals and maintenance guides that Motorcraft Premium Gold coolant is not to be mixed with any other type of coolant, including their own Premium Orange and Premium Extended Life Green coolants. Dex-Cool and other "Universal" orange and green coolants are not to be mixed either, as these do not contain the specified additives Ford requires for continued cooling, anti-corrosion, and seal lubricating capabilities.

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