Toyota red coolant for 2005?

[lexus114]

I just noticed last night while out in my mancave,that my 2005 RX was filled with the super long life coolant (the pink stuff) from the factory.My question is,I still have a gallon and a half left of the red stuff from my previous RX.Will this red coolant be good to use,or do I have to go purchase the pink stuff? I always heard that the red coolant was more stout.BTW,this is for a complete fluid change,not just a top off.

[mandyfig]

I believe you can mix both the pink and red, both of them are long life.