Engol Anti Freeze 50 Percent Is Recommended In All Water Cooled Internal Combustion Engines To Protect Against Corrosion And Frost Damage. This Product Is Pre Diluted To 50 50 Of Concentrate Engol Antifreeze And Deionised Water To Ensure User Efficiency. The Low Silicate Additive Technology Ensures Efficient And Long Lasting Protection Of The Engine And Cooling System For Up To 2 Years.