swampy1970 said:Most car washing soaps have a wax type agent in them... Donyou think that washing braking surfaces with waxy stuff is wise?
"Waxy substances" would be washed off the surface of your bike if they were mixed in with auto wash soap. Soap is a surfactant; it can solubilize water as well as lipids (like wax and oil). Soap works by surrounding globules of oily substances, trapping them in micro bubbles of surfactant. The outer layer of the bubble is attracted to water, and floats away as the water washes off the surface. So it wouldn't make sense for car wash soap, or any other soap, to have wax mixed in. You might as well pour it straight into the drain.