Bluecol Engine Coolant OE 30/34 is a high quality ethylene glycol based coolant/antifreeze for passenger car, truck, bus & stationary engine application Excellent compatibility with seals, hoses and plastic components. Provides excellent corrosion protection Helps prevent winter freezing down to -36 degrees and summer boil over Meets original equipment manufacturer (OEM) requirements. Conforms to BS6580 (2010). All year round use and maintenance free To obtain optimum protection a 50/50 coolant and water mixture is recommended.