Spray thinly and evenly onto the vehicle to be cleaned when cold. Use a brush to further clean places which are heavily contaminated. Allow it to act for 5-15 minutes depending on contamination and thoroughly clean off with a hard stream of water. When dry, wipe with a soft cloth. For parts which have been repainted, check paint for compatibility (spotting or lifting) on somewhere out of sight. If used properly, paint and plastic should not be damaged. When cleaning, the local regulations of the water management authority must be followed.