P21S or Chemical Guys Diablo Wheel Gel

[Trans1998AM]

Thank you BMW5541 and JSFM35 for your input.

 

[imported_glfahlc]

another one for p21s. i have a bimmer and a volvo and they both have reps for brake dust. haven't tried anything else as this gel does do the trick for me...

 

[mikenap]

Pass on the Diablo, folks. It's fine for wheel faces, but then again so is nearly any wheel cleaner. It's next to useless on the barrels, unless you feel like waiting AGES for it to dwell. I bought some last year, and still have a bit left since I honestly never reach for it. All it's doing for me is wasting a perfectly good spray bottle.Boo Hoo

 

[Tru_Shine]

The Diablo in my opinion sucks for cleaning the insides of wheels. like mikenap said above, it's good for faces but what wheel cleaner isn't?. I only use it on somthing that doesn't need anything crazy.

both are pH balanced but the P21s wheel gel actually cleans the wheel and diablo doesn't, IMO.

 

[Audiguru]

Diablo is ok, the sticky gel works better and is alot cheeper bulk.

 

[Trans1998AM]

Thanks Tru Shine and AudiGURU for your input. My quest for wheel cleaner continues....

 

[Audiguru]

I like how you emphisize guru

 

[imported_Emile]

Diablo Gel is more about being surface friendly.

P21S Gel has a pH of 9.5 and is "pH-controlled" not pH-balanced. It's a time-based alkaline detergent and has tons of cleaning power with tons of surface safety, but is very costly.

As others have said, the CG Sticky Gel (orange) is much stronger than Diablo Gel and costs a lot less. pH of 11.4 so it's safe for OEM wheels.

No such thing as the perfect wheel cleaner so be careful otherwise you'll end up like me and you'll have 45 different wheel cleaners on the shelf.

 

[imported_wfedwar]

Diablo is nothing special at all. Most regular car washes do at least as good. Initial reviews were good, but I can't imagine why...

 

[imported_Emile]

Because we were all excited about a relatively affordable ph-neutral gel-based wheel cleaner. The affordable part being that you always dilute it 3:1.

 

[CwpCasey]

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]

Diablo is unimpressive.

 

[imported_broker99]

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]

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...