I was setting up my pressure washer anyway, and figured I'd spray my wheels real quick. It is currently 62°F and overcast, so no worries about the product caking on or anything. I gave the wheels a once over with the pressurized water to knock off any heavy spots, then sprayed on the cleaner. I let it sit for about 5 minutes.
In response to the directions on the bottle: • Don't over use the product! Well, I'll try not to as I'm applying it for a third time • Works best when agitated with a brush. What doesn't work better with a brush? I wanted this for a quick touchup between washings. • Use high pressure hose water to remove. Well, 2000PSI seems like it should do the job to remove the product and any brake dust, but apparently not.
Overall I'm disappointed in this product. I get equally good results when I use a wheel brush, which I had to get out anyway to finish the job. I'm not at all sure what this is product does that other car soaps/detergents don't. Two stars for it being something of a detergent and I like the spray bottle.