It goes off on its own under 3 deg, will do it when you first switch on or if the temp dips as you're travelling. Mine went off the second day at home - last March - in the snow. Can't believe I've had Adam nearly 8 months now!
All cars come with antifreeze from the factory as it is also anti corrosion inhibitor & also lowers the boiling point of the coolant which results in cooler running in the summer
if your concerned take it back the dealer & get them test it for you. Or the other option is machine mart do a cheap tester.
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