Add Castle® Kleen Sweep Bug & Film Remover™ concentrate to your existing windshield solvent for an added boost to remove bugs and film where freeze protection is not required. Kleen Sweep™ formula contains cleaners to remove road film and bugs for crystal clear windshields. Works in all types of washers and will not harm car finishes. Contains ammonia. CAUTION: Product is flammable.
1. Use one ounce for each quart of windshield washer fluid.