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2009 CTS AWD DI 2014 AWD CTS DI
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624 Posts
Discussion Starter #1
Is there any reason to change the antifreeze in a 2002 DHS at 70,000 miles? This seemed to be a weak point but may have more to do with the old Dex Cool. Just thought I would check considering what I thought might be the consequences of waiting too long.
 

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White Diamond '03 DHS (with DTS floor shift)
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86,242 Posts
An '02 should be due in '07 or at 100K. Earlier can't hurt.
 
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