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				Understanding the Anti-Freeze Rainbow?
			 
 
			Greetings all!
 I just picked up my first Porsche, a 2001 Boxster that was gently used, (30K original miles) and seems to be well maintained.  In going over the car this past weekend for the first time and detailing it, I noticed the coolant bottle was a little low (below the min mark when cold).
 
 After searching here, and reading the potential horror stories, I dropped the $32.00 a gallon the dealer wanted for Porsche coolant (pink stuff.)  I mixed it 50/50 with distilled water to top off the tank, and when I went to pour it in, noticed (and confirmed with a sample) that the stuff in there already was actually the orange-ish, "DexCool" looking stuff.
 
 Should I, or shouldn't I top it off with Porsche Pink?  Eventually I want to flush it, as I don't have any records for that being done, (I can only imagine it was), but in the mean time, will topping the bottle off with a quart of pink mixed 50/50 cause me issues?
 
 Thanks!
 
 Bill
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