Freeze protection figures are often misleading
It seems confusing to many motorists, when a winter windscreen cleaner claims to provide freeze protection at minus 60 degrees. In our latitudes it is a rare occurrence to see the thermometer standing at -20 degrees Celsius. Such freeze protection figures are therefore, misleading. Incidentally, these cleaners would be so viscous, even at -40 degrees Celsius, that they could hardly be conveyed through the windscreen washer system.
As a matter of fact, the product‘s cleaning performance is of much greater importance than the highest possible freeze protection. And for this it should function optimally in temperatures around freezing point – plus ten to minus ten degrees. In order to guarantee a perfect cleaning performance, we also indicate the optimum mix ratios with the concentrates.
Incidentally: winter and summer windscreen cleaners should not be mixed – if only to ensure the required freeze protection. It‘s better, therefore, to first spray the wiper fluid reservoir empty. Specialists for the colder seasons, like the GTÜ test winner SONAX Antifreeze & clear view, contain highly effective, cooling active cleaning surfactants which dissolve and remove, without streaks, the typical winter dirt contamination such as road salt, soot and other road grime. With this, the windscreen washer system requires a minimal number of wiper strokes to achieve clear vision. The consumption of cleaning fluid is also reduced. That is why the SONAX Antifreeze & clear view was so convincing in the GTÜ tests, not only with the best cleaning performance, but also with the lowest cost per cleaning process.
Caution should be exercised with cheap products: Not only do they often work badly, but they can also induce tension cracks on anti-glare plastic headlights.