Washing a van or truck is a different proposition from washing a passenger car. You're dealing with larger surfaces, heavier dirt such as road grime, diesel residue, and brake dust, and products used in larger quantities. Regular car shampoo is often too mild and too expensive per litre for the job.

Truck and high-volume wash products are more concentrated, more powerful, and available in larger sizes. They work on paint, plastic, aluminium, and stainless steel, the materials you find on most commercial vehicles.