Product should be used in a well ventilated area. Saturate area to be cleaned until all grease and dirt are thoroughly wet. Let it soak for a few minutes and then wipe clean with rag. After dirt has been wiped away, allow to air-dry. In extreme cases, a second application may be necessary. NOTE: May harm certain plastics, elastomers and air-dry painted surfaces. Test product on non-essential similar material prior to application.