That is true, and Peak Global lifetime is a phosphate free antifreeze, so we are both correct, but to go even further, lets talk about phosphates.
Bmw recommends phosphate free antifreeze be used in their vehicles for the reason that the water in europe has an extremely high mineral content and if you mix an antifreeze containing phosphates which are part of the corrosion inhibitor package with the water they have in Europe the phosphates in the antifreeze "drop out" and form deposits in your cooling system that can lead to corrosion, howver this isn't a major concern here since our water has a lower minteral content and is softer than European waster, HOWEVER it is still a good diea to always use a phospate free antifreeze as prviously discussed