Drove three tanks of 80 liters with this additive. The car seems to run faster. Consumption has decreased by about half a liter, judging by the calculations when refueling. All this, perhaps, is due to a change in the mode of movement. The ice has melted, there is less ice and frozen snow on the body, especially from below, which we do not notice, but we carry. The engine, no matter how much I listened, did not work quieter, or did not become smoother. All this is nonsense. It is impossible to see the results of her work. One can only guess. Whether or not to use it is up to everyone.