Warning: avoid burns, do not remove the radiator cap while the angina is hot INSTRUCTIONS: read carefully. 1.Remove the radiator cap only when the engine is off and cold. 2. turn on the heating to red. 3. Pour the contents of the tube into the radiator. 4.Add coolant to the proper level if necessary. 5. Replace the radiator cap. 6. Check for Leak CAUTION: If swallowed, do not induce vomiting. Call a doctor. Prolonged contact with the skin may cause irritation. KEEP THE CONTEXT OF CHILDREN.