9651 Wash II is a highly concentrated, biodegradable, green liquid detergent specially formulated for the removal of grease, grime, oil, and other soils from trucks, tractors, farm equipment, and other industrial vehicles. This non-abrasive, water-based detergent is safe on most washable surfaces including painted surfaces, laminates, and many plastics. 9651 Wash II is an excellent follow-up product to 9641 Wash I. 9641 Wash I is used to remove oxidation and stains encountered when cleaning tractor trailer trucks. 9651 Wash II penetrates soils and provides a bright finish. The two-step wash system is used primarily on road equipment cleaning.