quality chemical mag brite - acid wheel and rim cleaner formulated to safely remove brake dust and heavy road film.-1 gallon (128 oz.) quality chemical an unbelievable rim cleaner and degreaser. a ready-to-use, phosphate-free, acid wheel cleaner formulated to safely remove brake dust and heavy road film from most wheel types. requires absolutely no scrubbing! apply to cool wheel and wash off! dirt and brake dust are no more! not recommended for untreated aluminum wheels.