The deicer works quickly and reliably, even at lower temperatures. At temperatures around the freezing point and a mild to moderate icing spray works immediately. One has only briefly and little spray. If the car longer at lower temperatures froze over, of course you need a little more spray and it takes a little longer, until the slices are free. Primarily I bought the deicer because you scratched even with the best ice scraper with time in literally the discs. That does not happen with Caramba definitely.