dirty van
hello june hall.....washing a vehicle does it no good whatsoever, more important when it is very clean such as when first purchased, coat the topside in wax (asda spray furniture wax is ideal and quick to do the whole without wiping) to protect the paintwork and leave for as long as you can. windows and lights need a wipe with wet cloth occasionally, .........if you get grime build up such as on the roof, then a wash with a dishwash sponge and soapy water, so it looks clean and then more wax to protect. underseal your expensive possession if possible.........good luck......steve bristol