3M car shampoo 250 milliliters with microfiber: Superior cleaning, pH balanced, removes tough dirt and road grime, safe on paint, effective with hard and soft water. 3M car wash shampoo generates the highest amount of foam compared to key competitors like sonax, vista, etc. This is specially critical considering the large number of customers who use bore well water or tanker water for washing their cars. 3M car wash shampoo is safe on paint and does not affect the wax on the cars surface. Application: Take 5 milliliters of the 3M car wash shampoo and mix it with 500 milliliters of water in a bucket.