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Group 20 Technical data Coolant Type ...................................................................... Volvo Penta Coolant Consisting of .......................................................... Ethylene glycol + corrosion inhibiting additives Colour .................................................................... Blue-green Mixed with .............................................................. Pure water IMPORTANT! Coolant must be mixed with pure water, use distilled - de-ionized water. The water must fulfill the requirements specified by Volvo Penta, see “Water quality”. IMPORTANT! Coolant must be used all year round. This applies even if there is never any risk for frost , to ensure that the engine has an adequate protection against corrosion. Using anti-corrosion aditive exclusively is not permitted in Volvo Penta’s engines. Never use water by itself as coolant. Future warranty claims on the engine and additional equipment may be rejected if an unsuitable coolant has been used or if the instructions concerning coolant mixing have not been followed. Water quality ASTM D4985: Total solid particles ...................................... < 340 ppm Total hardness: ............................................ < 9.5° dH Chloride ......................................................... < 40 ppm Sulfate ........................................................... < 100 ppm pH value ........................................................ 5,5– 9 Silica (acc. ASTM D859) .............................. < 20 mg SiO2/l Iron (acc. ASTM D1068) .............................. < 0.10 ppm Manganese (acc. ASTM D858) ................... < 0.05 ppm Conductivity (acc. ASTM D1125) ................ < 500 µS/cm Organic content, CODMn (acc. ISO8467) .... < 15 mg KMnO4/l 19
