Understanding the Anti-Freeze Rainbow?

[blundgren77]

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