Meguiars Ultimate "Wash & Wax" car shampoo. 

Ultimate "Wash & Wax" car wash is the perfect tool to keep your cars paint as fresh as possible. Contains the worlds first detergent with a special Carnauba wax dispersion, which refreshes the permanent wax layer and brings out the shine and depth of the paint surface again. The resulting rich foam binds dirt extremely well, which is gently removed with the foam during washing. There is no better car wash to use between waxings. After washing, dry the car with a high-quality drying towel. If necessary, you can treat the car with other surface care products after washing.