Super-concentrated phosphate-free brush-less soap. Mix 10 to 1 ratio. 10 parts water, 1 part soap. Spray on vehicle, allow 2 minute reaction time, rinse with high pressure and cold water. TCI 710 HD is safe on all surfaces, car, vans, trucks, trailers, buses, recreational vehicles, boats and siding. It is ideal for removing bugs, road film, lime dust, oxides, diesel soot, oil and grease.