I wash my cars in my garage using ONR. I have German cars that produce a ton of brake dust. Is it okay to use a wheel cleaner like sonax and then just spray it off using my 1 gallon sprayer filled with ONR. I've tried waxing the wheels but the brake dust is still tough to remove with only onr. I wouldn't see the harm in using a wheel cleaner as long as it gets rinsed thoroughly. Just wanted to make sure.