Toss a few gallons of water in your trunk before you head to remote locations -- while the propylene glycol in the antifreeze may not kill you, the corrosion inhibitors and other ingredients
The glycol is the corrosion inhibitor. That's its job as much as anti-freezing. That's why we use it even in climates without freezes, and not just a smaller package of corrosion inhibitors. You have to substantially change the properties of the water to retard corrosion.
Propylene glycol oxidizes when exposed to air and heat, forming lactic acid. If not properly inhibited, this fluid can be very corrosive, so pH buffering agents such as dipotassium phosphate, Protodin and potassium bicarbonate are often added to propylene glycol, to prevent acidic corrosion of metal components.
Amsoil Low-Toxicity Propylene Glycol Antifreeze
Composition by Weight:
Total glycols >= 92 percent; Corrosion inhibitors and
antifoamants = 8 percent; Water