I know some of you will say I am wrong and say you always wash from the top down but follow me on this and you might change your mind. The first thing I do is to place the end of the wand on the floor with the nozzle angled up and slide it under the vehicle sliding it in and out under the vehicle as far as possible and over lap the passes by half each time. I will do this on all sides plus the front and rear rocking the nozzle to change the angle and twisting the wand from side to side. I will do this until the water dripping from the under carriage looks clean.

Remember the under side of the vehicle has lots of cavities so this can take some time and effort, also if the engine has been run for a awhile the exhaust will be hot and there will be some steam, be assured you will do no damage.

After you are satisfied the under side is clean start on the body washing from front to rear in sweeping stokes from the bottom and progressing to the top. Then wash from the top down keeping the nozzle at a slight angle to the surface and a few inches away. When washing the moldings and trim back the nozzle a few more inches away, I have seen several molding blasted off from pressure. I always wash this way because if you wash from the top down, the water washing down the body becomes more and more salty and dirty and harder to rinse and more liable to leave streaks. Be sure to rinse well and if you have a clean Chamois or cloth dry the vehicle.

This will remove water spots and leave a dry shiny surface that will stay cleaner longer and if the car wash has a wax setting try it. Some car washes have a better wax setting than others so when you wash your vehicle try different car washes until you find the wash you like.

Good bye for now.