Mixing Dexcool with Peak Lifetime

[psiclone]

I have a 2000 Grand Prix GT currently filled with crystal clear Dexcool. I was thinking of pulling the lower radiator hose and refilling with Peak Lifetime. Any negative consequences of mixing the two brands of antifreeze?

 

[el_zorro]

If this is a year 2000 and it is the lower hose, I would do a complete flush of the Dexcool and replace with entire fill with fresh Global Lifetime. This is better stuff anyway and you will see a lot of critiques of Dexcool on this board. If you plan on keeping the car for any length of time you are better off getting that Dexcool out of there.