There may be several auto care product manufacturing companies who manufacture car shampoos meant specifically for the regular bucket wash method however, the best car and bike wash shampoos developed for bucket washing are as follows:

1. WaveX Wonder Wash Car Shampoo

A honey-like thick shampoo that provides a pleasant fragrance post washing, the WaveX Wonder Wash Car Shampoo is a brilliant car and bike wash shampoo that is utilized in very little quantity due to its high amounts of surfactants and foaming suds. This car shampoo also happens to be a pH-balanced shampoo that makes it safe for all glossy painted cars and bikes. Only 10-15 ml of the shampoo should be utilized in a washing bucket filled with 4-5 liters of water. 

2. WaveX Wash and Wax Car Shampoo

A car and bike wash shampoo infused with rich Brazilian Carnauba Wax and polymers, the WaveX Wash and Wax car shampoo provides glossy painted cars and bikes with a natural wax-like butter smooth finish and shine. A vehicle that has already been waxed with the WaveX Carnauba Wax will not be stripped of its wax rather it will complement the WaveX Carnauba Wax due to the presence of its very own Carnauba Wax Polymers. 20-25 ml of the shampoo is all you need for a wash bucket filled with 4-5 liters of water. 

3. WaveX Graphene Ceramic Wash Shampoo

A shampoo that is richly infused with graphene, ceramic and SiO2, the WaveX Graphene Ceramic Wash Shampoo has been specifically developed for vehicles coated with WaveX's range of ceramic coatings. This is the only shampoo that has been developed to protect, complement and maintain the ceramic coatings of vehicles. Another bucket wash compatible car and bike shampoo it is recommended that you add 20-25 ml of the shampoo to a wash bucket filled with 4-5 liters of water.