Directions for use: Spray engine compartment with SONAX Engine Cleaner. Allow to sit for 3-5 minutes. In case of heavy soiling, use a brush to loosen excess grime. Spray the treated area with a strong water jet to remove oily and greasy dirt from engine parts. Do not apply in direct sunlight or to warm or hot surfaces. Only clean your engine where oil and petrol separators are available!. Protect against freezing.