Why does my vehicle owners manual recommend a phosphate free antifreeze?
Some European car manufacturers recommend that phosphate free antifreeze be used in their vehicles. The reason is that the water in Europe has an extremely high mineral content. If you mixed an antifreeze containing phosphates, which are part of the corrosion inhibitor package, with the water they have in Europe, the phosphates in the antifreeze may drop out and form deposits in your cooling system that can lead to corrosion. However, this is not a major concern in North America, since our water is lower in mineral content, or softer, than European water.If you are interested in a phosphate-free antifreeze, Old World Industries offers PEAK™ Global LifeTime™ Antifreeze and SIERRA, the Safer Antifreeze.