Greyhound Auto Retail supplies vehicle shampoo and car wash products for home use, valet operations, dealerships and commercial fleets, from pH-neutral shampoos to heavy-duty truck and fleet wash.

Washing correctly is what protects the paint. Household dishwashing liquid strips wax and protection and dries out rubber and plastic trim, which is why a proper pH-neutral shampoo is worth using. The two-bucket method, with one bucket for shampoo and one for rinsing the mitt, keeps grit off the panel and is the single biggest thing you can do to avoid swirl marks.

Wash from the top down, never in direct sun or on hot panels, use a clean microfibre mitt rather than a sponge, and dry with a microfibre drying towel so the water does not spot as it evaporates.