After 8 cars, the wide body brush head started looking pretty dingy. So, I sprayed some APC at 10:1 directly onto the bristles, and took the tire brush and brushed the two together, back and forth, in and out, all around. Hosed it off, and it looked much better! (But not perfectly white.)
This also works on the tan wheel brushes.
Tom
This also works on the tan wheel brushes.
Tom
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