Impact Automotive Corrosion Inhibitor Premix is a pre-mixed heavy-duty, long life organic automotive / stationary engine cooling system corrosion inhibitor. It is suitable for petrol, diesel and gas fuelled engines where anti-freeze/anti-boil protection is not required. It provides long-life corrosion protection for aluminium and ferrous alloys and is fully compatible with the rubber hoses and plastics commonly used in engine cooling systems.Impact Automotive Corrosion Inhibitor Premix does not contain ethylene glycol. It is not an anti-freeze/anti-boil type coolant and should not be used in conflict with engine manufacturers’ recommendations. It will not reverse pre-existing corrosion problems.