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Old 03-10-2009, 11:16 PM   #1
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HELP!! how to FLUSH the cooling system????

dang it.... just replaced the coolant with zerex g-05 after seeing it used here on a diy to find out later i should be using the havolin dex-cool... my question is how do i fully flush the system to get the zerex out... i know how to just open the drain and refill now i want to know how to flush it so i get it all out... thanks.


Last edited by mikes_box; 03-11-2009 at 12:26 AM.
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Old 03-11-2009, 05:07 AM   #2
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wait. Before you go through the trouble, did you check out this page?

http://mike.focke.googlepages.com/antifreezeforyourboxster

is the zerex you got the extended life version? if so, I would think that's ok. basically, you want a coolant that's silicate and phosphate-free iirc.

otherwise, for flushing, I would just run a gallon or so of distilled water.

hopefully others will chime in about whether you even need to replace the zerex.
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Old 03-11-2009, 06:10 AM   #3
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Short of having access to one of those cool BG Products machines that will do this for you, you're going to have to drain and fill a few times with water to get all the old coolant out, then just refill with the appropriate mix of coolant and distilled water.

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