Mobil Antifreeze is a concentrated anti-freeze with high performance properties which should be diluted before application. Mobil Antifreeze comprises mono-ethylene-glycol and prevents freezing in winter and overheating in summer within 2 or more years of operation. ExxonMobil recommends to use Mobil Antifreeze when BS6580-1992 quality standard is required. Mobil Antifreeze must be diluted with water before application. It is compatible with hard water and can be mixed with tap water before filling the cooling system. However mine effluent water, sea water, salty water, brine water, process waste water should not be used. Approvals and specifications: BS6580-1992.