I disagree with the GEL from Meguiars. Everytime i used it... it would attract all the road dust and break dust and leave a thick goupy film waiting for me for the next cleaning. You can try scrubbing it off too and it doesn't come off as readily. I switched to the MEGUIARS HOT TIRE SPRAY i think it's called. The one which has the nozzle with three variable spray widths, from LOW PROFILE to BIG MONSTER Wheels. Goes on easy, stays on for a good week, and wipes right off readily for the next washing. A good 6.99 aerosol can.
