can anyone recommend a car shampoo with a nice and thick foam.

have tried Meguiar's Ultimate Wash & Wax and (presently using) MTX car shampoo. pero parang malabnaw yung foam nya when using the shampoo adapter ng pressure washer ko.

dagdagan ko ba dapat ng shampoo until I reach "car wash level" foam? o may specific brand na foamy talaga? or is it the foam gun?