A car that has made a throw of at least five hundred kilometers produces traces of a “meteorite attack” on the windshield. Of course, it is not as serious as in space, since basically it is limited to collisions with flies and other small flyers, but in any case, the glass will have to be washed. The hood, by the way, is also dirty. The problem is that reluctance to clean up, as they say, in hot pursuit. So we did not wash the experimental car from the adhering flies and mosquitoes for about three weeks.
The results of the “bathing day” for each of the preparations are given in the captions to the photo. Just note: most of the compounds were not as effective as we would like (however, they deal with fresh contaminants of this type much better). If you wash your car regularly, you can get by with a much cheaper shampoo. Another thing is their ability to remove tar and tar stains claimed by many manufacturers of compounds. But this is an occasion for another test.