I have used this product in my cars for decades. It helps cool the engines of my bike, truck, tractor and my wife's car. No, it won't make a hot engine spit out ice cubes, but that's not what it's designed for. This is to ensure the vehicle's cooling system performs better, with less effort and at lower temperatures for longer life. But adding this doesn't mean you can safely ignore or overuse the cooling system, or skip the recommended flushing and maintenance schedule. My bike (which is why I started buying it) is over 30 years old and still runs with the original factory radiator, which speaks volumes about Water Weather performance. It's only a few extra dollars and for my peace of mind it's worth it.
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