So i did a quick test on it today with some actual dirty wheels. they are from my GF car..its a 08 Kia with id think about 40k miles on it..the wheels have never been cleaned before
rears


Fronts


In action


Completed





it took 2 applications and scrubbing. I only had my mothers wheel brush and a Jr daytona speed brush. I am really not a fan of that Daytona speed brush as it hardly even removes the brake dust off my perfectly clean wheels. I have never done wheels this dirty or even really wheels dirty as all as I only ever clean my car. I feel if I had a cone brush that was stiffer like the Deep reach brush I woulda been able to get them cleaner with less effort. Either way i think it did well.