16 Oz (470 mL) bottle is ready to be used, other sizes need to be diluted with water at a ratio of 1:3 since they are concentrated. Apply when the engine is cold. Used by spraying the product onto the engine and other components in the engine bay. After it is applied, wait for 3 minutes and rinse with pressurized water.

Before washing with water, precautions should be taken to protect the electrical/electronic parts of the engine against water.

For more stubborn stains and heavily soiled areas, a brush is recommended to agitate the product well into the crevices before rinsing the area with water. Repeat as necessary.