I was confused there for a minute. I thought, dang, Bigboy is going to xpand, but then, you are the wrong Bigboy. Being from Canada and all.
As for getting fleetwash business, depends on what type of business you want to build. If you want to do large volumes of work at competitive prices (read this cheap) you can drop flyers and pricing to all those companies you are interested in, and then take it from there. Make sure that you make call backs to everyone that you drop a flyer off at. If you want to get a premium price, then you need to make personal visits to fleet managers, and sell yourself to them. Always leave a card, and if you can, make your card different. My cards were Mauve for years, (Okay, kind of a dark pink) but they were great because they were always remembered.