[s_wilwerding]

I wouldn't recommend it - why didn't you re-use the original coolant? When I added the GT3 radiator, I saved the coolant, strained it through a coffee filter (it inevitably gets things in it) and re-used.

Someone over on Renntech had figured out the brand of the coolant that Porsche uses - it's some foreign brand, and it seemed like it cost nearly as much as just buying it from Porsche. As info, Porsche sells undiluted coolant, so if you need 4 gallons, you only need to buy two from Porsche and add two gallons of distilled water.