MANNOL AG11 BLUE Antifreeze Concentrated Coolant Fluid (Longterm) – 1L Description:    MANNOL Longterm Antifreeze AG11 is a concentrate intended for all year round use in any modern aluminum and copper cooling system which is using antifreeze on an ethylene glycol base. Protects against corrosion and scaling. No foam, neutral to gaskets and sleeves.   […]