Direct Feed: Apply 1 to 2 ounces of product per vehicle. Pre-Dilution: Dilute 10 gallons detergent to 45 gallons water and apply 6-12 ounces per vehicle. Apply on cool surfaces. Pressure Washer: Apply from bottom to top. Allow time for soil penetration. Do not allow product to dry on surface. Rinse from top to bottom. Note: Not recommended for hand mitting. When using for the first time; test diluted product on an inconspicuous area of surface to be cleaned.