P21S or Chemical Guys Diablo Wheel Gel

**CwpCasey** · 03-02-2011, 02:39 PM

I`ve used both and I like the smell of CG Diablo, but using the P21 gel as directed I`ve gotten better results with P21. Now Diablo isnt a bad product, but I like P21 better.

**imported_Jokeman** · 03-03-2011, 09:04 AM

Diablo is unimpressive.

**imported_broker99** · 03-05-2011, 11:17 PM

it is not a gel but I have been having some pretty good luck with Flash`s Brown Royal. Plus it is cheap compared to the others.

**imported_CH.Detailing** · 03-05-2011, 11:35 PM

Originally Posted by bmw5541

I really like Sonax Full Effect Wheel Cleaner the best. However, if you do use this, be careful as the Sonax may cause the disks to rust. The rust can be removed, but you need to know about it. It is PH neutral as well.

Barry, I`m curious as to what you`ve experienced with regards to the underlined part. I know that Sonax oxidizes the iron filaments on the wheel face (which causes the green to red color change, or at least that`s how I think it works), are you saying that Sonax causes oxidation of the rotor more so than the typical flash surface oxidation that you`d see from even getting a rotor wet? Just curious.

I suppose it also depends on the specific composition of the rotor in question...