The white car (only 2 years old) my wife was somehow (Linden) trees and looked like rusted. Quite awful. I drove it so through the wash and it came just as dirty back out. Also rub with a sponge and water with dish soap (I'm not a "car nut" and had therefore nothing else) brought almost nothing. Thanks to research on the internet I came across Sonax Xtreme. After the recessions study I have number 2 ordered from Amazon. As always, super fast delivery (Prime customer) through Amazon, then with the polish to the paint. I have to say, very good effect, while protection by wax! However, you still had vigorously with a sponge rub (household sponge removed from discounters). Therefore, again read and number 3 and 1 well appointed. Xtreme 3 is with a lot of abrasives and without wax, patch this "rust" that went super off, then polished and with number 1, the wax sealed to protect. I'm excited! It flashes like new. Now I understand why many still maintain their car so ;-) Now I just Sonax Xtreme 1, 2 and 3. But no problem, equipped for every eventuality. The 2 I am now on my car. As I drive many kilometers of motorway, the hood is still "patchy" after wash (Mückchen, dirt etc.). At number 2 then the same also waxed. And the 3 For stubborn dirt in the white car my wife and 1 then to seal. Let's see how long does the wax, only now finished. Pearls but from much better than to wash with premium wash and wax in the wash. Overall, however, "only" 4 stars because you something, "scratch" must. But of "alone" as if by magic or just spray gibts halt probably nix.