Flamingo Car Wash Shampoo (F380 concentrated formula) Dilution RatioThe label specifies a "CRAZY 1:500" super-concentrated formula.For Machine Washing / Foam Cannons: Dilute with water at a ratio of 1:500. For example, use 10 mL of shampoo for every 5 liters of water.For Manual Hand Washing: You can adjust the dilution up to 1:300 to build a rich lather in a standard wash bucket. This equates to roughly 15–20 mL of shampoo per 5 liters of water.