In principle the following calculation can be set up:
Less spatter High quality cleaner Sonax vs. many, many liters of cheap cleaner.
If the dirt is too persistent, helps only manual labor, in other words hard brush or microfiber + a lot of muscle. Since the cleaner Sonax can not tear.
Otherwise, the Sonax cleaner is chemically safe quality. After a few splashes of the process, the dirt (mainly brake dust on the front axle) reacts with the cleaner, which then turns red begins. Keeping not generous distance from the fog, the lungs feel for it as for a package tilting on Ex.
After a brief spraying with a high pressure cleaner and the dirt is gone.
In short, when used regularly (every 2 weeks with several hundred kilometers a week) can cause the cleaner miracle. Where you need with cheaper cleaners multiple applications and possibly even manual assistance, the Sonax Extreme does its job quickly and easily. With aluminum wheels that were thousands of kilometers left untreated, a short spraying and spraying but is not enough then.
Conclusion
5 star, expensive, but certainly different (better) than the competition put together.
