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Apply only to wheels that are cool to the touch. Dilute to required strength and spray on cool dry wheel surface. Let sit for 30-45 seconds and rinse with water. Clean and rinse one wheel at a time. NOT FOR USE ON POLISHED ALUMINUM OR ANODIZED WHEELS.
Up to 4:1
For severe accumulations of brake dust, use a wheel brush and agitate area during the application of Wheel Brightener.
For aftermarket brake systems, consult manufacturer for proper care.