Omera Premium Coolant is an engine coolant based on ethylene glycol that needs to be diluted with water before use. Omera Premium Coolant protects engines against corrosion, overheating and frost. It effectively protects engines against corrosion and deposits in the cooling system with its vital parts, the coolant channels in the block and cylinder head, the radiator, the water pump, and the heater core. Omera Premium Coolant is recommended for:  Toyota  Nissan  Mitsubishi  TATA  Ashok Leyland  Volvo  Hyundai  Kia  Mazda  Fiat  Audi  BMW  Ford  Suzuki  Mahindra  Lotus  Leyland  Subaru  Peugeot  Renault  Land Rover  Lexus  Jaguar The mixing ratio of Omera Premium Coolant and water is 1:3. For best performance use 1:2 ratio for the mixture of Omera Premium Coolant and water. For the preparation of the coolant, it is recommended to use distilled or deionized water. In most cases, tap water is also appropriate. Analysis values of the water may not exceed the following threshold values: Water hardness: 0 – 3.6 mmol/l Chloride content: max. 100 ppm Sulfate content: max. 100 ppm.