Description: Alkota TR-451-5 Truck Wash is our 5 gallon industrial pressure washer detergent made for fleet cleaning and maintenance. This powerful formula is best for cleaning dirt, grime, grease and more from engines, fifth wheels, off-road equipment, and construction equipment. Not recommended for use on fine auto finishes, aluminum, magnesium, or galvanized metals. Quantity: 5 gallons. Content: Brown liquid, 17% actives. CLASS 8 CORROSIVE - MUST BE DILUTED.